issues at the interface of disaster risk management and low-carbon development
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Issues at the interface of disaster riskmanagement and low-carbon developmentFrauke Urban a , Tom Mitchell b & Paula Silva Villanueva aa Climate Change and Development Centre , Institute of DevelopmentStudies IDS , Brighton, BN1 9RE, UKb Climate Change, Environment and Forests Programme , OverseasDevelopment Institute ODI , 111 Westminster Bridge Road, London, SE1 7JD,UKPublished online: 14 Sep 2011.
To cite this article: Frauke Urban , Tom Mitchell & Paula Silva Villanueva (2011) Issues at the interfaceof disaster risk management and low-carbon development, Climate and Development, 3:3, 259-279, DOI:10.1080/17565529.2011.598369
To link to this article: http://dx.doi.org/10.1080/17565529.2011.598369
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Issues at the interface of disaster risk managementand low-carbon developmentFRAUKE URBAN1,*, TOM MITCHELL2 and PAULA SILVA VILLANUEVA1
1Climate Change and Development Centre, Institute of Development Studies IDS, Brighton BN1 9RE, UK2Climate Change, Environment and Forests Programme, Overseas Development Institute ODI, 111 Westminster Bridge Road,
London SE1 7JD, UK
Effectively managing disaster risks is a critical tool for adapting to the impacts of climate change. However, climate changemitigation and low-carbon development have often been overlooked in disaster risk management (DRM) research, policy andpractice. This article explores the links between DRM and low-carbon development and thereby sheds light on a new andemerging research and development agenda. Taking carbon considerations into account for DRM and post-disaster recon-struction can contribute to laying the foundations for low-carbon development and the benefits it can bring. It can also provide anopportunity to combine adaptation and mitigation efforts. The article elaborates the carbon implications of DRM interventions andpost-disaster reconstruction practices, drawing on case studies from flood risk reduction, coastal protection, drought riskreduction, post-disaster housing and energy supply reconstruction. Finally, the article makes suggestions about how the carbonimplications of DRM measures could be accounted for in a coherent manner. Suggestions include calculating the carbonemissions from DRM and post-disaster interventions as part of globally standardized environmental impact assessments andimproving the linkages between ministries of environment, energy and climate, and those ministries that deal with disasters.
Keywords: adaptation; carbon emissions; climate change; development policy; disaster risk management; energy; greenhouse gas
emissions; low-carbon development; mitigation
1. Introduction: the interplay between climatechange, mitigation and disasters
Global climate change is considered one of the
greatest threats to development efforts. It poses
risks to humans, the environment and the
economy. Scientists agree that the possibility of
staying below the 28C threshold between ‘accep-
table’ and ‘dangerous’ climate change becomes
less likely the longer that no serious global
action on mitigating climate change is taken
(Richardson et al., 2009; Tyndall Centre, 2009).
A rise above 28 is likely to lead to abrupt and irre-
versible changes (IPCC, 2007). These changes are
expected to make it difficult for contemporary
societies to cope with and they could cause
severe societal, economic and environmental
disruptions which could severely threaten inter-
national development throughout the 21st
century and beyond (Richardson et al., 2009).
Global climate change has adverse effects on agri-
culture, water, food production, human and
animal health, coastal areas, energy and many
other sectors. The poor in developing countries
are the most vulnerable to climate change,
despite contributing to it the least. Climate
change can exacerbate existing disaster risks and
thus increases the frequency and severity of
some extreme climate events, such as heat
waves and heavy precipitation events (IPCC,
2007). There is thus a link between climate
change and disasters.
Adaptation to climate change and mitigation
of greenhouse gas emissions (GHG) are both
review article
B *Corresponding author: E-mail: [email protected]
CLIMATE AND DEVELOPMENT 3 (2011) 259–279 doi:10.1080/17565529.2011.598369
# 2011 Taylor & Francis ISSN: 1756-5529 (print), 1756-5537 (online) www.tandfonline.com/tcld
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crucial responses to climate change. While the
scientific community, practitioners and policy-
makers have for a long time focused on miti-
gation, the focus has recently shifted to
low-carbon development (LCD). The key charac-
teristics of LCD, as described by the UK’s Depart-
ment for International Development (DFID)
are: (1) improving energy efficiency and using
low-carbon energy sources, (2) protecting and
promoting carbon sinks, (3) promoting low- or
zero-carbon technologies and business models
and (4) introducing policies which discourage
carbon-intensive practices (DFID, 2009, p. 58).
LCD aims for climate-friendly economic and
social development, which is important, both
for developed and developing countries. In high-
income countries and emerging economies LCD
is mainly about reducing emissions, while in
poor countries LCD is mainly about the opportu-
nities and benefits it can offer such as access to
electricity from renewable energy, green jobs,
payments for sustainable forest management
and distributive effects (Urban, 2010). In poor
countries LCD has to be aligned with poverty
reduction, economic growth and broader devel-
opment goals to enable it to be an ‘upward’
trend rather than a ‘downward’ trend. It also has
to be recognized that in poor countries LCD
may not be the preferred or the least cost
option, and so additional incentives may be
required.
The disaster risk management (DRM) commu-
nity has been actively engaged in issues related
to climate change adaptation. DRM is seen as a
critical tool for adapting to the impacts of
climate change where tackling the adaptation
deficit (Burton, 2004) to existing climate variabil-
ity is viewed as a sensible first step. Despite the
fact that DRM, climate change mitigation and
adaptation share common goals, namely redu-
cing the vulnerability of communities and
achieving sustainable development, mitigation
issues and LCD issues have so far not been system-
atically addressed by the DRM community. This
is a trend that can be observed in other
development sectors and programmes as well,
where climate change adaptation tends to play a
dominant role while mitigation aspects receive
less attention in development circles.1 One
could therefore argue for the need to bring in low-
carbon considerations into development efforts
at a broader level. However, this type of general
assessment is too broad for one article and there-
fore the focus here is on the low-carbon consider-
ations of DRM. Taking carbon considerations into
account for DRM and post-disaster reconstruc-
tion can help to lay the foundations for LCD
and the benefits it can bring. It can support a
move away from the old polluting development
model that today’s developed countries have fol-
lowed, and instead offer opportunities and
benefits for a new cleaner development model
which relies less on carbon, such as for post-
disaster energy supply, housing reconstruction,
coastal protection, flood protection and drought
risk management. This can reduce dependency
on expensive fossil fuel imports and imported
externally produced building materials and it
can enable decentralized climate-friendly energy
access for households living in energy poverty.
It can also increase indigenous capacity for tech-
nological development and innovation; as well
as resilience to climate change when it is linked
to adaptation measures, and the resilience of
households, as it can have a positive impact on
people’s livelihoods.
Klein et al. (2005) suggest integrating mitiga-
tion and adaptation into climate and develop-
ment policy. Integrating LCD considerations
and DRM considerations could be an opportunity
to combine adaptation and mitigation efforts
and to contribute to low-carbon climate-resilient
development in countries that are particularly
vulnerable to climate change and changing
disaster risks.
This article explores the links between DRM
and LCD and sheds some light on a new and
emerging research and development agenda.
The most important links between DRM and
LCD are related to four issues: (1) the carbon
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and greenhouse gas implications of measures
to reduce disaster risk; (2) the carbon and
greenhouse gas implications of post-disaster
and reconstruction interventions; (3) climate
change-related changing disaster risk for LCD
options and their limits; and (4) how LCD
increases resilience and reduces vulnerability to
climate change. The links between DRR and
LCD are elaborated below, while the third and
fourth links are very important and need further
elaboration, but go beyond the scope of this
article. Research on aspects (3) and (4) is
ongoing, and the results will be published at a
later stage. Both DRM interventions and recon-
struction interventions can either contribute to
GHG and therewith climate change, or mitigate
the emission of GHG, for example, by sequester-
ing carbon or avoiding emissions leading to
climate change. This is often linked to the protec-
tion of natural carbon sinks and the provision of
low-carbon energy, which can have positive
impacts for communities affected by disasters.
Section 2 explores the LCD implications of DRM
interventions; Section 3 explores the impli-
cations for reconstruction interventions; and
Section 4 discusses and concludes the article.
This article takes an original approach to both
LCD and DRM research as it aims to explore
issues at the interface of both and elaborate the
policy and practice implications.
2. DRM interventions and implications for LCD
2.1. Environmental considerations of DRMinterventions
Environmental concerns related to development
efforts became a public issue long before the
public concern for climate change started. Con-
siderable research and analysis has been under-
taken by the United Nations International Strategy
for Disaster Reduction (UNISDR) to illuminate the
connections between environmental hazards,
sustainable development strategies and disaster
response and management. UNISDR (2004) puts
it most succinctly:
The environment and disasters are inherently
linked. Environmental degradation affects
natural processes, alters humanity’s resource
base and increases vulnerability. It exacerbates
the impact of natural hazards, lessens overall
resilience and challenges traditional coping
strategies. Furthermore, effective and economi-
cal solutions to reduce risk can be overlooked
[. . ..] Although the links between disaster
reduction and environmental management
are recognized, little research and policy work
has been undertaken on the subject. The
concept of using environmental tools for disas-
ter reduction has not yet been widely applied
by practitioners (UNISDR, 2004, p. 195).
The Hyogo Framework of Action (UNISDR,
2005a) argues that ‘reducing the underlying risk
factors’ related to the environment and disasters
are a priority for action. The framework specifi-
cally recommends efforts on environmental and
natural resource management that: (a) encourage
the sustainable use and management of ecosys-
tems, including through better land-use planning
and development activities to reduce risk and
vulnerabilities; and (b) implement integrated
environmental and natural resource manage-
ment approaches that incorporate DRM, includ-
ing structural and non-structural measures, such
as integrated flood management and appropriate
management of fragile ecosystems.
In line with this reasoning, United Nations
Development Programme (UNEP) launched its
new Online Resource Centre in 20102 to reduce
the environmental impact of relief work and to
establish preventive measures. UNEP argues that,
for example, cutting down trees for shelter and
fuel wood in humanitarian relief interventions
often exacerbates existing problems like defores-
tation and stress on natural resources, while it
leaves the local people vulnerable to future pro-
blems. ‘Several best practices have proven that
including environmental considerations in
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humanitarian operations is not only better for the
environment but also cost-effective, such as
sending supplies by ship rather than by air, as
well as predictable and coordinated planning of
logistical operations’ (UNEP, 2010, p. 1).
Environmental management and practices
have started to be applied within organizations’
DRM guidelines (e.g. Tearfund, 2009); however,
issues related to carbon emissions or other GHG
have received very little consideration so far and
are not always considered in environmental
impact assessments (EIAs) of DRM interventions.
Nevertheless, taking into account low-carbon
considerations for DRM and post-disaster recon-
struction can increase the resilience of affected
people and communities to climate change.
This is elaborated below.
Measures to reduce disaster risk include ‘soft’
interventions such as ecosystem approaches and
‘hard’ structural interventions, such as levees,
sea walls, earthquake resistant buildings and eva-
cuation shelters (UNISDR, 2005a). All physical
constructions that use building materials and
energy resources have carbon and other GHG
implications; however, their impact varies sig-
nificantly. Taking carbon considerations into
account in risk reduction, relief and reconstruc-
tion would contribute to making the DRM indus-
try more climate friendly. This is an important
dimension for recognizing the benefits that a
climate-friendly low-carbon economy can bring
to developing countries. It should not be seen as
an effort to reduce the emissions of countries
that are disaster prone and already have very
low emissions. Therefore, efforts to support a low-
carbon DRM industry that takes its carbon impli-
cations into account should not be an attempt to
reduce emissions in poor countries, but is about
raising awareness of the potential climate-related
damage being caused by DRM interventions and
encouraging the choice of climate-friendly
alternatives where appropriate. This can lay the
foundations for LCD and the social, economic
and environmental benefits it can bring. Urban
(2010) stresses that measures for LCD in poor
countries are mainly about the benefits and
opportunities they can bring in a carbon-
constrained world, rather than about cutting
emissions. These efforts for including low-carbon
considerations in the DRM sector go hand in
hand with the trend to include low-carbon con-
siderations in the development sector.
2.2. Greenhouse gas and carbon emissionimplications of DRM interventions
There are strong arguments to support the idea
that DRM interventions should aim to reduce
GHG to avoid further contribution to the risks
posed by climate change (Curtis, 2009). While
development agencies and DRM agencies are
increasingly aiming to reduce organizational
carbon footprints, it is time to start thinking
about intervention level carbon impacts. Bockel
reports that, for example, the World Bank sup-
ports the piloting and development of a mix
of market and non-market mechanisms to encou-
rage agricultural carbon sequestration and reduce
carbon emissions for development projects
(Bockel et al., 2010). Among others, it is piloting
a range of approaches to estimating the carbon
footprint of its projects and DRM interventions.
These include (a) listing activities that contribute
to mitigation or adaptation; (b) testing and rolling
out more robust estimation tools for measuring
carbon footprints; (c) project-based carbon
measurement for access to the voluntary carbon
market; and (d) sharing knowledge between and
within countries (Fernandes and Thapa, 2009).
Accordingly, this section will elaborate the
carbon emission implications of three important
types of DRM interventions: flood risk manage-
ment interventions, coastal protection and
drought risk management. These three types of
DRM intervention have been chosen because
they are considered the most important in
relation to climate change. It is crucial for
countries, which are affected by climate change
and changing disaster risks to protect their
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coastal areas, to protect their people and land
against floods and to protect against droughts,
water stress and food shortages. These are the
three types of DRM intervention which are most
relevant for low-income countries, particularly
small island developing states, least developed
countries and countries struggling with food
security, water security, floods and sea-level rise.
We are aware that ecosystem approaches to
DRM are a key strategy to reduce the severity
and the impact of disasters. However, for the
purpose of this article we have chosen to
include both ecosystem approaches, such as
forest restoration, and commonly used structural
interventions, such as dams. The key reason for
doing so is to highlight how different DRM inter-
ventions have the potential to either mitigate
GHG or have the potential to lead to emissions.
Investigating the links between LCD and ecosys-
tem approaches for DRM in more depth could
be the subject of follow-up research that exam-
ines the options for carbon uptake due to DRM
interventions rather than the carbon emissions
from DRM interventions. This article acknowl-
edges that all interventions have trade-offs,
although some are more important than others.
Coastal protectionCoastal areas are particularly prone to disasters
such as storm surges and sea-level rise and are
therefore especially vulnerable to climate
change. Coastal protection depends both on
structural DRM interventions such as sea walls
and dams, and on non-structural interventions
such as land-use management and ecosystem-
based risk management. Ideally, an appropriate
hybrid mix of the two approaches is used for
coastal protection. An example is Sri Lanka,
where the Disaster Management Centre has
studied the potential benefits of adopting
hybrid schemes or ‘soft engineering’ approaches
to coastal defence (UNEP, 2007).
There is an increasing recognition that healthy
coastal forests – mangrove forests in particular –
can help to reduce coastal disaster risk (Othman,
1994; Mazda et al., 2004; UNISDR, 2005b).
Although we acknowledge that structural inter-
ventions are effective, this article focuses on eco-
system approaches, such as preserving mangrove
forests, because they have the potential to seques-
trate carbon.
Mangroves are important sources of income for
local fishermen as they are abundant in fish,
shrimps and other aquatic organisms. However,
for many decades these natural coastal barriers
have declined in many places due to human
and natural activities, such as harvesting fuel
wood or claiming land for agriculture. Osti et al.
(2008) report that in the past 20 years, 50 per
cent of the world’s mangrove forests have been
lost, making them one of the world’s most endan-
gered landscapes. Some argue that this reduction
is associated with commercial shrimp farming.
Many see it as crucial to recover these forests
and to use them as a shield against costal disasters
and as a resource to secure socio-economic, eco-
logical and environmental benefits. UNEP
reports how mangroves in Vietnam have contrib-
uted to DRM:
Vietnam is one of the most typhoon-struck
countries in Asia [. . .. The] Red River delta –
an extensive rice-growing area in northern
Vietnam [is] one of the most densely populated
regions in the world. The mudflats of the delta
were claimed for agriculture over several centu-
ries by building dykes. Local communities
traditionally left a band of natural saltwater-
tolerant mangrove forest between the dykes
and the sea in order to help protect the rice
fields from waves, wind and typhoon damage.
However, the cutting of the mangrove forests
for fuel and the spraying of chemical defoliants
during the war in the 1970s destroyed most of
this natural protection belt. As a result, some
of the dykes started to erode, posing an increas-
ing risk to people and their rice fields. [. . .] The
Vietnamese Red Cross planted more than
175 km2 of mangrove forest along almost
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200 km of coastline, representing nearly the
entire coastline (where natural conditions
allowed). Local communities carried out the
planting and were granted the right to harvest
marine products such as crabs and mussels in
the areas they had planted for a number of
years [. . .] The planting and protection of
12,000 ha of mangroves cost around USD 1.1
million, but helped reduce the cost of dyke
maintenance by USD 7.3 million a year. The
Red Cross also estimates that 7,750 families
improved their livelihoods, and hence their
resilience to further hazards, through the
selling of crabs, shrimps and molluscs (UNEP,
2007, p. 25).
Nevertheless, this case study has to be
approached with caution: mangroves provide
effective protection from coastal erosion and
occasional storms. However, there is less evidence
that mangroves are an effective defence mechan-
ism in the case of disastrous events, such as tsuna-
mis, where the massive wave energy can often
strip mangroves or other coastal forests at the
roots.
It is reported that coastal wetlands can poten-
tially accumulate carbon at high rates over long
periods of time. Mangroves play an important
role: Trumper et al. (2009) calculated that man-
grove accumulates around 0.038 gigatonnes of
carbon (GtC) per year globally. Suratman (2008)
argues that, proportional to the area covered,
mangroves sequester carbon faster than terrestrial
forests (Suratman, 2008).
Nevertheless, it is not clear as to whether the
estimates of carbon sequestration by mangroves
take into account methane release from the
highly organic mud around the roots of the man-
groves. As mangroves are growing under stressed
conditions, there is some uncertainty around
whether mangrove trees would sequester more
carbon than, for example, rapidly growing
poplars under irrigated conditions. Kristensen
et al. (2008) report that, despite increased
research into carbon sequestration in mangroves,
there is still uncertainty about the mechanisms
of carbon sequestration and their regional vari-
ation. The study indicates that the capacity
to sequester carbon is influenced by spatial, tem-
poral and environmental conditions. The carbon
sequestration capacity depends on vegetation
type, microbial processes, sediment structure
and tidal variations. External factors that affect
the mangroves and their sequestration capacities
are climate change, exposure to water move-
ments, river discharges, soil changes in the terres-
trial system and the composition of marine and
terrestrial fauna around the mangroves (Kristen-
sen et al., 2008). Mitra et al. (2011) found that
carbon sequestration in mangroves also depends
on levels of salinity and siltation. Higher levels
of salinity seem to reduce the amount of carbon
stored, as found in Bangladesh. Given these vari-
ations and uncertainties, it is difficult to make
generalizations about the amount of carbon
sequestrated by mangroves.
Research into other types of wetlands confirms
the highly regional carbon sequestration
capacities. In addition, the methods for measur-
ing carbon are subject to a certain degree of uncer-
tainty, especially long-term studies. Brevik and
Homburg (2004) analysed data for carbon seques-
tration in wetlands over the last 5,000 years in
southern California and found that carbon
sequestration occurs at the fastest rate in
lagoons, followed by intertidals, salt water
marshes, freshwater marshes and most slowly in
aeolins. The study suggested that a mean rate
for carbon accumulation in southern California
is 0.033+0.0029 kg C/m2/year over a long time
period (5,000 years). Trumper et al. (2009)
report that globally tropical and subtropical
forests such as in mangrove-growing regions
store 547.8 GtC within the entire biome. Bernal
and Mitsch (2008) found that soil carbon
accumulation in temperate wetlands is signifi-
cantly greater than in tropical wetlands. This is
in line with findings from other soils in tropical
regions (e.g. Scheffer and Schachtschabel, 2009).
The Bernal and Mitsch study observed three
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main types of wetlands, namely isolated forested,
riverine flow-through and slow-flow slough. The
forested wetlands had higher carbon contents
than the other two types. Bernal and Mitsch
(2008) conclude that the type of wetland and its
carbon inflow are decisive factors for the
amount of carbon stored.
Improved ecosystem management represents a
valuable approach for DRM, climate change adap-
tation and climate change mitigation.3 Protected
and well-managed ecosystems are cost-effective
ways to promote sustainable livelihoods, protect
coasts and increase resilience. They also bring
the benefits of LCD. Some sources suggest that
improved ecosystem management can offer new
economic opportunities through global carbon
trading schemes (UNEP and UNISDR, 2008;
Sudmeier-Rieux and Ash, 2009). This would be
the case when specific activities qualify under
carbon trading standards or projects qualifying
under the REDD (reducing emissions from defor-
estation and forest degradation) and LULUCF
mechanisms (land use and land-use change and
forestry). REDD ‘is an effort to create a financial
value for the carbon stored in forests, offering
incentives for developing countries to reduce
emissions from forested lands and invest in
low-carbon paths to sustainable development.
“REDD + ” goes beyond deforestation and forest
degradation, and includes the role of conserva-
tion, sustainable management of forests and
enhancement of forest carbon stocks’
(UN-REDD Programme, 2010).
The UNFCCC (2010, p. 1) states that:
Activities in the LULUCF sector can provide a
relatively cost-effective way of offsetting emis-
sions, either by increasing the removal of
greenhouse gases from the atmosphere (e.g.
by planting trees or managing forests), or by
reducing emissions (e.g. by curbing
deforestation).
These activities include afforestation, reforesta-
tion, forest management, cropland management,
grazing land management and revegetation
(UNFCCC, 2010, p. 1).
Coastal protection through afforestation of
mangroves and wetland protection is also a
key strategy for linking adaptation and mitiga-
tion and thereby contributing to low-carbon
climate-resilient development.
Drought risk managementAgriculture, and especially food production, is
one of the most climate-sensitive sectors. Com-
munities heavily dependent on agriculture are
increasingly vulnerable to disasters due to losses
of harvests, destroyed plantations, salinization,
animal losses, disease, etc. On the other hand, it
is reported that agriculture currently contributes
to about 30 per cent of global GHG emissions,
but has major potential to serve both as a mitiga-
tion and adaptation option for tackling climate
change and reducing poverty (Fernandes and
Thapa, 2009).
In terms of irrigation, low-carbon energy tech-
nologies can offer benefits. Case studies from
India and Brazil, for example, show how solar
panels and small wind turbines can power irriga-
tion pumps for increased agricultural pro-
ductivity and for reducing drought risks. This is
just one example of how irrigation, drought risk
management and LCD are linked (Wisions of
Sustainability, 2010).
UNISDR (2007) reports the following case
study from Kenya which shows how tree planting
can reduce drought risk while sequestering
carbon and mitigating climate change:
The Green Belt Movement (GBM) of Kenya [. . .]
fosters local-based efforts to create a more sus-
tainable environment that will be more resili-
ent to the effects of drought. The program
creates a culture of resilience by encouraging
women and men in rural areas to plant and
nurture native trees. Established in the
mid-1970s, GBM is credited with planting
more than 30 million trees and is now expand-
ing to other African countries. Its founder,
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Wangari Maathai, won the Nobel Peace Prize in
2004 (UNISDR, 2007, p. 45).
The movement was set up to decrease negative
effects from deforestation and agricultural inten-
sification which led to erosion, lower fertility of
soils, reduced water availability, a reduction in
wildlife, shade and air quality.
The result was greater vulnerability to drought,
malnourishment, famine, and death. Maathai
taught women to collect seeds of indigenous
trees from their immediate surroundings and
to nurture them using whatever resources were
at hand. GBM paid the women a token
amount for each seedling that survived. [. . .]
GBM organizers conducted a variety of environ-
mental education and awareness activities for its
‘foresters without diplomas’, and made a point
to listen to people in their native languages as
they shared traditional knowledge from their
particular areas (UNISDR, 2007, p. 45).
This example demonstrates how one programme
has grown to meet the broader needs of local com-
munities. It has increased re-forestation, brought
greater food security, empowered women and
developed environmental education and leader-
ship capacity. The programme reduces the risks
of climate-related disasters such as drought and
famine while it contributes to carbon uptake
from the atmosphere. However, it should be
noted that the green belt movement (and similar
efforts) is not without problems, and has been cri-
ticized for its simplistic approach that does not
consider people’s livelihoods and the feasibility
of tree planting in local areas. In addition, the
type of trees planted can determine the success or
failure of such initiatives. Other initiatives (e.g.
in Thailand) have created local opposition
because the newly planted Eucalyptus trees use so
much water and soil nutrients that they exacerbate
drought and erosion conditions rather than
improve them (FAO, 2011). Nouvellon et al.
(2008) also indicate that soil carbon budgets in
savannahs in Congo were slightly negative after
afforestation efforts with Eucalyptus.
Regarding the carbon uptake, Trumper et al.
(2009) report that, globally, grasslands, savannah
and shrublands (e.g. in Kenya and large parts of
Sub-Saharan Africa) store 285.3 GtC within the
entire biome. Wang et al. (2009) and Witt et al.
(2011) report that knowledge and research
about the carbon sequestration of arid and semi-
arid soils, such as in Africa and Australia, is very
limited. Witt et al. (2011) nevertheless suggest
that arid and semi-arid soils play an important
role in carbon sequestration and biodiversity pro-
tection. The study concludes that carbon seques-
tration rates for grazing, soil and ground biomass
in Australia’s semi-arid mulga lands has the
potential to sequestrate between 0.92 and 1.1 t
CO2-e/ha/year for up to 40 years. Similar studies
exist for Senegal’s Sahel transition zone (e.g.
Woomer et al., 2004); nevertheless, results are dif-
ficult to compare because measurements and
methods vary. It is clearer that drought risk man-
agement through afforestation and the protec-
tion of soils and lands is a key strategy for
linking adaptation and mitigation and thereby
contributing to low-carbon climate-resilient
development.
Flood risk management: hydropower dams andreservoirsThere are many structural and non-structural
options for flood risk management. Non-
structural options include river restoration,
wetland restoration, river basin management,
afforestation and a change in regulations relating
to settlement on or near river banks and coastal
areas. Structural options include river bank and
coastal protection with embankments, dikes,
flood walls, sea walls and costal defences; chan-
nels, run-offs, retention basins and drainage
systems; and dams and reservoirs. Perhaps the
most controversial flood risk management
options are dams and reservoirs.
Hydropower dams and reservoirs are predomi-
nantly built for power generation, but more
recently their benefits for water storage for irriga-
tion and household use has been discussed, as
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well as their potential to prevent and control
floods (Schultz, 2002; World Commission on
Dams, 2000). Dams provide low-carbon energy,
but at the same time they can be the cause of
GHG due to embedded emissions during con-
struction and operation. Dams and reservoirs
have proved to be effective for flood control, as
evidenced by Brazil’s Tucuruı dam in, the
Tarbela dam in Pakistan, Turkey’s Aslantas dam,
the Gran Coulee dam in the US, the Kariba dam
in Zimbabwe/Zambia (World Commission on
Dams, 2000a, b) and Egypt’s Aswan dam (Strzepek
et al., 2008).
Hydropower is the most commonly used
renewable energy source today (IEA, 2010). The
World Energy Council estimates that there is a
global potential for more than 41,202 TWh/year
(4,703 GW) of hydropower with a technically
exploitable potential of more than 16,494 TWh/
year (1,883 GW) (WEC, 2007). At the end of
2005, 778 GW were installed and another
124 GW were under construction worldwide
(WEC, 2007). Many developing countries such
as China, Brazil, Lao, Cambodia, Ghana and
Ethiopia depend heavily on hydropower as a
form of clean energy. Nevertheless, hydropower
is vulnerable to droughts, water stress, increased
temperatures and decreased precipitation
(ESMAP, 2011).
Dams allow the retention of run-off which can
be released in dry periods. ‘The dams closest to
the origins of the tributaries restrain the flood-
waters while the dams further downstream
release their reserves and the flood waters are
then released into each succeeding dam and
finally into the main river’ (McCartney et al.,
2001, p. 1). The efficacy of these structures is
sometimes questioned as they can result in
negative consequences downstream and their
environmental impacts can be high, for
example, by directly or indirectly affecting
coastal or riparian environments, fisheries and
natural processes of erosion and sedimentation.
Despite these negative impacts, construction-
based flood risk reduction efforts, such as dams
and hydropower reservoirs, are a significant com-
ponent of disaster prevention (UNEP, 2007).
Recently, there has been an ongoing debate
about GHG from large dams and reservoirs and
their contribution to climate change. There are
marginal GHG emissions from two main sources:
1. GHG emissions due to the industrial pro-
duction of the dams, mainly from the pro-
duction of concrete, steel and power lines for
connection with the nearest grid (e.g. Rashad
and Ismail, 2000). Life cycle analysis shows
that the GHG emissions from both large and
small hydropower are similar to those of
other renewable energy and are significantly
below those of fossil fuel plants (Gagnon
et al., 2002; Evans et al., 2008).
2. Emissions from bacterial decomposition of
organic material underwater after flooding of
the vegetation (Rosa et al., 2004). Gases
emitted are mainly nitrous oxide carbon
dioxide and methane. There is uncertainty
about whether methane emissions depend
on the age of the dams (Rashad and Ismail,
2000; Fearnside, 2002; Ruiz-Suarez et al.,
2003; Rosa et al., 2004). The carbon content
in tropic ecosystems is estimated higher than
that of boreal and grass land ecosystems, so
that more GHG emissions are emitted from
tropical dams (Rashad and Ismail, 2000).
Many studies seem to agree that GHG emissions
from dams range in average between 40 and
45 g CO2 equivalents/kWh with smaller dams
and dams in cooler climate being at the lower
end of the scale and large dams and dams in the
tropics being at the upper end of the scale
(Rashad and Ismail, 2000; Gagnon et al., 2002;
International Rivers, 2002; IHA, 2005; Evans
et al., 2008). Nevertheless, studies agree that
hydropower dams produce far less GHG emis-
sions during their lifetime than fossil fuel
plants, namely at least 10 times less (World Com-
mission on Dams, 2001; Gagnon et al., 2002; IHA,
2005). The focus of the debate should therefore be
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rather about the emissions that can be mitigated
by hydropower dams due to being an alternative
to fossil fuels, rather than its marginal emissions.
Dams can be important stepping stones for LCD
and shifting from high-carbon to low-carbon
energy systems.
A more significant issue is the high social
impactsof largedam building which often involves
resettlement, loss of livelihoods, inadequate or
non-existent compensation payments and other
negative effects. Studies show that many past reset-
tlement programmes are inadequate as they have
relocated affected people to areas without appro-
priate infrastructure, such as sanitary facilities,
drinking water, electricity and roads like at
Tarbela (Pakistan) and Tucuruı (Brazil) (World
Commission on Dams, 2000a, b). The main social
problems regarding relocations are the following:
compensation payments are often too low for a
decent living, relocation of the local population
often results in loss of livelihoods such as fisheries
or subsistence farming and compensation pay-
ments are not equally well distributed which
means that some people do not receive any com-
pensation at all, or payment is very late (World
Commission on Dams, 2000b).
It is well established that dams and reservoirs can
provide effective flood risk management and
increase potential for irrigation and agricultural
activity, thereby improving the livelihoods
of those dependent on agriculture (World
Commission on Dams, 2000a, b). Nevertheless,
this often comes with serious environmental
impacts. Observed impacts include increased rates
of erosion and sedimentation, increased frequency
of landslides, changes in water flows, destruction of
flora and fauna, ecosystem changes, decreases in
water quality (partly due to increased inflows of
pesticides and industrial waste waters), increased
eutrophication and, most importantly, changes in
fish and shrimp productivity (World Commission
on Dams, 2000b). A very serious environmental
impact is reported to be reservoir-induced seismi-
city which might trigger earthquakes. This is
assumed to be problematic for the Three Gorges
Dam which is built on two major tectonic fault
lines (International Rivers, 2008). Nevertheless,
this can occur only in very rare cases. The main
alternatives are fossil fuel power plants which con-
tribute significantly to climate change, or a reliance
on nuclear power, which is risky and can lead to
serious health and safety issues as became evident
in the nuclear accident in Fukushima, Japan in
March 2011.
Small hydropower plants, and particularly
micro- and pico-hydropower plants, usually
have very little impact on GHG emissions, and
very low social and environmental impacts,
because they are mainly from river run-off and
often do not include any dams or reservoirs.
Debates around low-impact and non-structural
alternatives to dams that reduce flood risk while
being environmentally friendly have started to
emerge. For example, the Government of Japan
is shifting its flood protection interventions
based on concrete river walls to construction
based on ecosystem restoration (UNEP, 2007).
Similar approaches are reported in Central
Europe, for example along the Danube. In
recent years, attention has been paid to using
environmentally friendly alternatives to large
structural flood management. This new approach
calls for integrated management of the water-
shed, river and floodplain, and incorporates
non-structural strategies in addition to other
traditional flood management structures (Brink
et al., 2004). Maintaining watersheds by avoiding
deforestation and diversion of waterways protects
water quality and quantity, as well as preserving
livelihoods dependent on fisheries. Risk manage-
ment measures, such as appropriate construction
to withstand storm and flood, can also help
communities in adapting to climate change
(UNISDR, 2007). Other important alternative
flood protection measures that can replace dams
include not building houses and settlements in
direct proximity to rivers or flood plains, restor-
ing riparian ecosystems such as natural wetlands
and floodplains, and to reduce concrete river
regulation.
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Finally, the benefits of dams and reservoirs
mainly relate to energy provision. Hydropower
has made a revival during recent years due to
climate change concerns. It has to be acknowl-
edged that dams are primarily built for energy
generation which is crucial for powering econom-
ies, while flood protection has been a desirable
side effect. Given the controversy around dams
due to emissions from reservoirs, resettlement
issues and high environmental impacts it is advi-
sable to favour ecosystem approaches for flood
protection such as restoring floodplains and wet-
lands and avoiding settlements within the proxi-
mity of rivers. Haque and Zaman even go as far as
suggesting that physical prevention of floods in
Bangladesh and ‘technological fixes’ are likely to
‘pose serious threats to long-term sustainability
of floodplain ecology and sociocultural resources
of Bangladesh’ (Haque and Zaman, 1993, p. 93).
On another note, Mirza et al. (2001) argue that
intensification of settlement in flood-prone areas
might be one of the key factors why floods appear
to get worse in the Ganges, Brahmaputra and
Meghna basins. River banks are often considered
the home of the poorest of the poor in many
developing countries that are prone to flooding,
such as in Bangladesh. Introducing new regu-
lations against settlement of river banks, and
efforts to restore ecosystems in places where the
poorest settle is linked to enforcement barriers
and is likely to create increased social instability.
3 Post-disaster and reconstructioninterventions and implications for LCD
This section examines the carbon and green-
house gas implications of post-disaster relief and
reconstruction interventions. It draws particu-
larly on case studies from housing reconstruction
interventions and post-disaster energy supply
as examples of how emissions can be mitigated
in the DRM sector. Low-carbon post-disaster
reconstruction options, such as post-disaster
energy supply from renewable energy and locally
manufactured housing, can decrease the depen-
dency on expensive imports and fossil fuels,
quickly provide rapid energy access for people
living in energy poverty, and can contribute to
local employment and capacity building and an
overall increase in resilience. It can also support
indigenous capacity for innovation and a new
climate-friendly development pathway.
3.1. Environmental considerations ofpost-disaster and reconstructioninterventions
In 1997, in recognition of concerns about huma-
nitarian response efforts, non-governmental
organizations (NGOs) launched the Sphere
Project,4 the first collaborative initiative to
produce globally applicable minimum standards
for humanitarian response. The aims of the
Sphere Project are to improve the effectiveness
of humanitarian efforts and to enhance the
accountability of the humanitarian system, pri-
marily to those people who need protection and
assistance in disasters, as well as to agency
members and donors (The Sphere Project, 2010).
Besides humanitarian response efforts, recon-
struction efforts after disasters are crucial.
Among others, the Sphere standards emphasize
that the critical role of managing future disaster
risks should not be overlooked in the rush to
restore the situation in disaster regions to pre-
disaster conditions.
Post-disaster situations create enormous
pressure to provide survivors with adequate per-
manent housing and other vital supplies as
rapidly as possible. The urgent need for housing
normally leads to large-scale reconstruction pro-
grammes and huge demand for construction
material. Moreover, in post-disaster situations
environmental assessments are often neglected
to increase the speed of reconstruction (UNEP
and SKAT, 2007).
The pressure to regain equilibrium as quickly
as possible must be balanced with seizing
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opportunities for long-term risk-reduction, adap-
tation toclimatechangeand community improve-
ments through sustainable reconstruction. After
the 2004 Indian Ocean tsunami, the DRM commu-
nity embraced the principle of ‘build back better’.
The aim was to assess existing problems and devel-
opment issues to take them into account for future
actions as a way to improve the lives of people
affected and of future generations (Kennedy
et al., 2008; Chang et al., 2010).
The 2010 post-disaster reconstruction guidelines
Lessons from Aceh by the Disasters Emergency
Committee (DEC) members highlights the impor-
tance of EIAs in reconstruction programmes, and
the opportunities that post-disaster reconstruction
processes may bring for introducing low-carbon
technologies (Da Silva, 2010). While EIAs may be
desirable for post-disaster construction work,
rapid responses and restoration of livelihoods
may require some shortcuts or streamlining of pro-
cedures, in what can be a rather lengthy process.
The DEC guidelines propose that the following
key questions could be included in EIAs to
improve the links between disasters, environ-
mental effects and low-carbon issues:
How did the disaster affect the environment?
How can reconstruction protect, repair and
enhance ecosystems?
Is there potential to re-use or recycle waste
materials generated by the disaster? Can transi-
tional shelters be re-used or incorporated into
permanent housing?
What materials are available locally and are they
sustainably sourced and certified? Is there
potential to introduce new materials or manu-
facturing processes which have less environ-
mental impact?
How are building components manufactured? Do
they require energy intensive processes or
create toxic waste products?
What is the source of potable water? Has this been
affected by the disaster? How can sanitation
and solid waste management be designed to
protect and enhance water sources?
Is there potential to incorporate rainwater har-
vesting, renewable energy, composting or
biogas toilets? Are these appropriate and
would they be maintained? (Da Silva, 2010,
p. 21).
Unfortunately, these EIA considerations for Aceh
do not include assessments of emissions of
carbon dioxide and other greenhouse gases from
reconstruction interventions. The problem is
that there are no globally agreed standards for
EIA, even though there are efforts by multilateral
organizations to standardize EIAs and to include
estimates of GHG emissions. However, EIA guide-
lines do differ from region to region, and not all
request estimates for emissions. The EU has devel-
oped their own guidelines for EIAs, illustrated by
the following example:
‘Environmental impact assessment (EIA) is an
important procedure for ensuring that the likely
effects of new development on the environment
are fully understood and taken into account
before the development is allowed to go ahead’
(Department for Communities and Local
Government (DCLG), 2000, p. 5). ‘The following
developments need EIA:
(i) major developments which are of more than
local importance;
(ii) developments which are proposed for par-
ticularly environmentally sensitive or vul-
nerable locations;
(iii) developments with unusually complex and
potentially hazardous environmental
effects’ (DCLG, 2000, p. 9).
The agreed EIA procedures in the EU require
information on ‘emissions to air’ from pro-
duction processes of the proposed development,
a description of climatic factors and air quality
(DCLG, 2000, p. 56), assessments of effects from
‘emissions from the development during normal
operation’ (DCLG, 2000, p. 57) and an elabor-
ation of mitigation measures to reduce adverse
effects on the environment. However, this is not
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specifically related to reducing emissions (DCLG,
2000, pp.58–59). The EU’s EIA guidelines take
into account carbon and GHG, although other
countries often have less strict regulations. It is
often suggested, particularly in relation to large
hydropower projects in the developing world,
that EIAs have either been ignored to some
extent or in some cases even been omitted (e.g.
Mekong River Commission, 2007). A different
trend has been observed recently in relation to
large hydropower projects in Southeast Asia,
which have taken GHG emissions into account
in their EIA and have established a climate
change baseline assessment (ICEM, 2010).
3.2. Greenhouse gas and carbon emissionimplications of post-disaster relief andreconstruction interventions
The following two sections will highlight case
studies from housing reconstruction and post-
disaster energy supply and their GHG implications.
Housing reconstructionThe exploitation of natural resources during post-
disaster situations for intensive production of
building materials may sometimes cause irrevers-
ible environmental impacts and degradation
(Roseberry, 2008; Chang et al., 2010), followed
by high levels of carbon emissions (O’Brien
et al., 2008). For example, timber products are
commonly used building materials in post-
disaster reconstruction interventions. Sustain-
ably sourced timber has significant benefits over
unsustainably sourced timber or imported pro-
ducts. Unsustainable timber harvesting can also
lead to a decline in forest size and quality and
thus reduce natural carbon uptake.
Forests and wood are integrally linked to
climate change and have an important role
to play in mitigation and adaptation (Van
Bodegom et al., 2009). Forests sequester carbon
from the atmosphere when they grow, thereby
offsetting a significant part of GHG emissions.
Forests store more than 80 per cent of terrestrial
above ground carbon and more than 70 per cent
of soil organic carbon (Prins et al., 2009; Van
Bodegom et al., 2009). They are also a source of
fuelwood and modern biomass (such as wood
chips) that can be a substitute for fossil energy,
thereby reducing GHG emissions.
There is an increasing understanding of the
relationship between house type and environ-
mental sustainability, and this is being con-
sidered in reconstruction interventions (O’Brien
et al., 2008; UNEP, 2008; Chang et al., 2010).
The following case study indicates how different
types of post-tsunami reconstruction in Indone-
sia had direct carbon and GHG implications.
O’Brien et al. (2008) report that after the Indian
Ocean Tsunami in 2004, housing reconstruction
agencies aimed to build houses based on
mass-produced construction materials.
The dominant house type built by reconstruc-
tion agencies followed the ubiquitous ‘bun-
galow’ model and was constructed with
industrialized materials. Other types were
hybrid models that used the industrialized
materials but traditional ‘house on stilts’ typolo-
gies. In Aceh, Indonesia, the adoption of these
types extended existing trends away from verna-
cular traditions and materials such as timber and
bamboo (O’Brien et al., 2008, p. 361).
Researchers examined the sustainability of three
house types built by reconstruction agencies in
Aceh and compared these with traditional timber
housing. The study made a life cycle assessment
(LCA) to determine the sustainability of each
type of house, calculating both the CO2 emissions
and the ecological footprint of each house. ‘The
ecological footprint shows how much biologically
productive land and water a house requires
throughout its life-cycle’ (O’Brien et al., 2008,
p. 363). LCA is a method for assessing the environ-
mental impacts of specific products or processes
during their life cycle, taking into account the pro-
duction, use, transport and recycling phases. The
study found that the post-tsunami reconstruction
housing types were ‘linked with levels of
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greenhouse gas emissions up to fifty times higher
than traditional types and triple the ecological
footprint of traditional types. This increase is pri-
marily due to the overwhelming use of externally
procured and imported construction technologies
and mass-produced materials’ (O’Brien et al., 2008,
p. 361). The study confirmed that based both on
CO2 emissions and on ecological footprints tra-
ditional housing types constructed with locally
harvested timber are key to reducing negative
environmental impacts associated with post-
disaster housing (O’Brien et al., 2008).
Sustainable housing reconstruction could con-
tribute to LCD and the benefits it can bring.
Benefits include, among others, reduced depen-
dency on imports for building materials; lower
building costs; houses that can be amended for
the specific needs of and in line with the tra-
ditions of the local population and the region
(e.g. houses on stilts for flood-prone areas); and
the creation of local employment opportunities.
As such sustainable housing can bring together
mitigation and adaptation efforts; while introdu-
cing new mechanisms and options for enabling
disaster relief and development in a carbon-
constrained world.
Post-disaster energy supplyPost-disaster reconstruction provides an opportu-
nity to address the need for household energy
supply. Energy is a basic human need for basic
household activities. It is also required to
sustain and expand economic processes like agri-
culture, electricity production, industries, ser-
vices and transport. It is commonly suggested
that access to energy is closely linked with devel-
opment and economic growth (e.g. WEC, 2000,
2001; DFID, 2002; IEA, 2002; WHO, 2006) and
that alleviating energy poverty is a prerequisite
to fulfil the Millennium Development Goals
(DFID, 2002; WHO, 2006). It is also closely inter-
twined with climate change.
In 2007, about 80 per cent of the global energy
supply came from fossil fuels such as coal, oil and
natural gas in 2007 (IEA, 2010). As well as the
negative environmental impacts of fossil fuels,
they can also create a dependency on resources
which are not locally available but need to be
imported. These energy choices are therefore
expensive and inconvenient for poor house-
holds (UN Habitat, 2007) and they pose a threat
to energy security. Extensive fossil fuel use
ultimately leads to a ‘carbon lock-in’, with
infrastructure and investments bound to a
carbon-intensive economy for decades. Relying
on them can mean greater costs in the long run
(Urban and Sumner, 2009).
Most developing countries rely primarily on
traditional biofuels such as fuelwood as primary
energy source (Karekezi et al., 2004; Urban and
Sumner, 2009). According to the WHO (2005),
1.6 million people – mainly women and chil-
dren – are likely to die every year from respiratory
and other diseases because of exposure to indoor
air pollution from traditional biofuels. Introdu-
cing modern renewable energy sources as a repla-
cement for traditional biofuels would improve
the health of the population in developing
countries. Renewable energy can also reduce
GHG emissions, reduce dependence on energy
imports and increase energy security. Small-scale
renewable energy technology such as solar
panels, lamps and cookers, small wind turbines,
small hydropower and biogas cookers can be
used for lighting, cooking, heating and other
household activities. The social and environ-
mental benefits of improved cooking stoves have
been widely assessed (DFID, 2002). These include
access to energy for poor households, health
improvements, better income opportunities, edu-
cational gains (such as being able to study after
dark and having electricity and heating in
schools), reduced workloads from fuelwood collec-
tion, greater safety and a number of environ-
mental pay-offs such as reduced pressure on
finite energy resources and forests, and improved
air quality. Renewable energy can be an option
for providing off-grid decentralized energy. This
is particularly important in rural areas and for
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post-disaster reconstruction when the central grid
does not exist or has been damaged.
It has been reported that renewable energy is
used in many post-disaster and reconstruction
interventions. One example is from Haiti where
after the 2010 earthquake solar energy is used to
power health care provisions and to reconstruct
the damaged power infrastructure (Inhabitat,
2010; Renewable Energy World, 2010). This is
carbon neutral and enables a quick and cost-
effective way of rebuilding the power supply in
a sustainable low-carbon way.
Similar approaches have been reported from
refugee camps in Sudan’s Darfur region, where
solar cookers are locally manufactured and used
by refugee women as an alternative to fuel
wood. This project was primarily implemented
to reduce incidents of violence and rape against
women and girls when leaving the refugee
camps to collect fuelwood, but it has also had
positive environmental side effects such as safe-
guarding the forest areas surrounding the camps
and providing low-carbon energy for cooking
(JWW, 2010).
After the 2008 earthquake in Sichuan province,
China, DFID China spent USD1 million on
technical assistance, 20 per cent of which is
being used for low-carbon reconstruction of the
city of Guangan. This low-carbon reconstruction
focuses on three main areas: promoting renew-
able energy such as solar and wind energy, build-
ing a low-carbon community, promoting
low-carbon lifestyles and constructing low-
carbon buildings (Wang, 2010).
Post-disaster renewable energy supply could
contribute to LCD and bring a range of benefits,
including reduced dependency on expensive
fossil fuels; rapid and decentralized energy
access in regions where there is no grid; increased
energy security and protection of fossil energy
resources; improved health as a consequence
of reducing indoor air pollution from traditio-
nal biomass cooking; and income generation
and educational benefits from energy access.
Renewable energy is also being used for water
pumping and irrigation for agriculture in areas
affected by climate change. Water pumping is
important for post-disaster relief interventions.
As such, use of renewable energy in post-disaster
situations can bring together mitigation and
adaptation efforts, while introducing new mech-
anisms and options for enabling disaster relief
and development in a carbon-constrained world.
3.3. Practical implications
The task of reconstruction after a major disaster is
difficult and the introduction of low-carbon
materials and technology may not facilitate the
task in the short term. It will require deliberate
and coordinated efforts of all stakeholders
for effective recovery that provides new paths
to LCD.
The responsibility for establishing and imple-
menting reconstruction policies rests primarily
with governments. Most countries have their
own institutional arrangements for disaster man-
agement, including reconstruction. Post-disaster
responses by national governments, bilateral aid
agencies, NGOs and UN agencies have been
characterized by rapid rehabilitation projects
including water and sanitation, housing, irriga-
tion, food-security and health. These are often
ad hoc and separate from the overall develop-
ment objectives of disaster-hit countries. The
real challenge lies in broadening the remit of
humanitarian, developmental and environ-
mental bodies and in bringing them together in
a shared effort for achieving sustainable recovery
(UN Habitat, 2007).
Disaster risk reduction, relief and reconstruc-
tion need to be seen as opportunities for develop-
ing countries to reap multiple benefits in terms of
development and resource management that can
at the same time help to mitigate GHG emissions.
As well as the advantages outlined above, sus-
tainable housing reconstruction and use of
renewable energy in post-disaster situations are
both cost effective (as they reduce the need for
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expensive imports and use local and more sus-
tainable resources) and enable a quick response
to urgent problems. Importing diesel oil or con-
crete building blocks takes time and relies on a
functioning transport infrastructure. Cases from
the earthquake in Haiti and conflict-struck Pales-
tine show that neither transportation nor distri-
bution networks are very reliable in extreme
situations. Use of solar cookers or local timber to
construct traditional houses can offer quick, cost-
effective and low-carbon alternatives for rapid
response in disaster and conflict situations.
This section has elaborated the challenges and
opportunities for incorporating carbon emission
considerations in post-disaster circumstances.
Challenges include, for example, time constraints
and the need for rapid action, while opportunities
include the additional benefits of off-grid renew-
able energy. LCD can be stimulated in post-
disaster circumstances by (a) fostering the use of
low-hanging fruit technologies (such as renew-
able off-grid electricity supply), and (b) planning
ahead. Rather than only having risk maps and
disaster-resilient building codes in place when a
disaster strikes, LCD considerations could be fac-
tored in at a much earlier phase. This could con-
tribute to both climate change mitigation and
adaptation.
4. Discussion and conclusions
Incorporating carbon emission considerations in
DRM approaches can increase the opportunities
for LCD. Low-carbon practices should be favoured
whilehigh-carbon practices shouldbe avoided. For
high-income countries and emerging economies
greater efforts should be made to reduce emissions
within their DRM and reconstruction efforts. For
poor countries, this is mostly about the benefits
and opportunities of LCD, such as access to low-
carbon energy, rather than about full optimization
of all DRM and reconstruction efforts.
From an analysis of the literature it is evident
that the carbon and greenhouse gas implications
of DRM and post-disaster interventions – and
development efforts in general – are hardly con-
sidered in research and practice to date. There is
much scope for further exploration of the carbon
emission implications of DRM practices and
options for reducing the impacts. As some develop-
ment programmes already have experience with
low-carbon alternatives, emphasis should be laid
on transferring this knowledge to the disaster man-
agement community. Further research is required
into the potential for low-carbon options, such as
sustainably sourced building materials, renewable
energy alternatives and natural protection against
disasters, which can sequester carbon and thereby
mitigate climate change.
This article has illustrated that there is scope for
DRM and reconstruction interventions to
respond both to climate change adaptation and
mitigation. Taking a strategic approach to risk
management before and after disaster situations
can potentially lead to triple benefits, namely
reducing disaster risk, enhancing adaptation
and mitigating GHG.
Mitigation actions could include renewable
energy systems, carbon sequestration by forests
and wetlands, and improved land-use planning.
Minimizing negative impacts on natural carbon
sinks such as forests, vegetation and soils, which
absorb carbon dioxide has been identified as a
potential win–win outcome of DRM interven-
tions. Introduction of renewable energy technol-
ogy and greening initiatives in the planning and
execution of DRM intervention can substantially
reduce emissions and other potentially negative
environmental impacts.
The following suggestions could more coher-
ently promote the consideration of carbon emis-
sions in DRM measures:
B CO2 and other GHG from DRM interventions
should be calculated and their risks assessed as
part of EIAs globally. To some extent this is
done in EIAs in the EU and other countries,
but this practice can often fall short in devel-
oping countries and in emergency responses.
An international standardization of EIAs
could offer a solution, and reduce a number
274 Urban et al.
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of adverse environmental effects including
effects that bring about emissions in
both developing and developed countries.
However, EIAs are commonly overlooked in
the post-disaster work. In such cases, the bar-
riers to undertaking EIAs need to be addressed
before additional requirements can be intro-
duced. Since EIAs can be lengthy, their proces-
sing time needs to be shortened and tailored
to emergency responses.
B Post-disaster reconstruction phases need to
take into account the GHG associated with
interventions, and should implement strat-
egies to reduce these emissions by using, for
example, renewable energy technologies for
post-disaster energy supply and local resources
for post-disaster housing. However, as with the
point made above, there are various barriers
which need to be addressed before additional
requirements can be introduced. These barriers
include an absence of adequate institutions
and mechanisms to coordinate responses; a
lack of enabling frameworks, standardized pol-
icies and guidelines for how to deal with disas-
ter situations; corruption particularly with
respect to post-disaster and reconstruction
interventions; and the need for relief and
development organizations to take a more
coordinated approach.
B LCAs of structural interventions such as sea
walls, dykes and large hydropower dams
should be conducted and should be made
public to enable learning and improved
decision-making for future interventions.
B The links between environmental ministries,
climate ministries, energy ministries and dis-
asters ministries on LCD and mitigation
issues should be improved.
B Sphere standards should include measures to
address the emissions of relief operations.
B Reconstruction processes should include
analysis of low-carbon scenarios and climate
change mitigation options.
B So far, data related to the above suggestions are
limited. For example, there are very limited
data about LCAs which are relevant to DRM
interventions (although more may emerge in
the future). Ideally, DRM and post-disaster inter-
vention teams should work with climate change
mitigation specialists for the purposes of advice
and calculations of carbon footprinting, mitiga-
tion potential, low-carbon reconstruction pro-
cesses and renewable energy options. There
needs to be improved cooperation between
national and local authorities involved in disas-
ter planning and LCD planning. There also
needs to be improved cooperation and knowl-
edge exchange between disaster specialists, low-
carbon specialists and other technical experts.
Finally, some would argue that DRM is already
moving towards better disaster preparedness by
taking into account environmental concerns.
However, low-carbon issues specifically have so
far received less recognition. There are two key
reasons as to why these concerns should be
taken into account:
1. Many useful LCD practices can at the same time
be useful DRM practices and even useful adap-
tation practices. This article shows that many
low-carbon practices have the potential to
increase the resilience of people and commu-
nities affected by disasters. Hence, there is
potential for creating synergies between adap-
tation and mitigation in the DRM sector. This
would enable an integrated approach to
climate change rather than treating adaptation
and mitigation as separate issues. This could
increase the effectiveness of climate policy
and practice, increase prospects for funding
and raise awareness of climate change issues.
2. Taking carbon considerations into account for
DRM and post-disaster reconstruction can
support a transition to LCD. It can lay foun-
dations for a shift away from the polluting
development model that today’s developed
countries have followed. Instead it can offer
opportunities and benefits for a new cleaner
development model which relies less on
Disaster risk management and low-carbon development 275
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carbon and brings with it other developmental
and socio-economic benefits. DRM has the
potential to affect key sectors such as energy
provision, housing, agriculture, forestry and
coastal protection, which can play a key role
in developing a more sustainable development
model. DRM could therefore be seen as an
opportunity for moving towards low-carbon
climate-resilient development.
Acknowledgements
This work has been funded by the UK Department
for International Development (DFID) under the
Strengthening Climate Resilience (SCR) pro-
gramme. The authors are grateful to Purvi Malho-
tra for her work on the project. The authors would
also like to thank Maarten van Aalst, Lars Otto
Naess and two anonymous reviewers for their
valuable comments to the article.
Notes
1. While the international policy process around
climate change is often predominantly concerned
with mitigation, adaptation is more prominent in
development circles when it comes to climate
change in developing countries. This is due to the
marginal emissions most developing countries have
and the need for rapid adaptation to climate change.
2. UNEP Online Resource Centre: http://postconflict.
unep.ch/humanitarianaction/.
3. However projections for sea-level rise need to be care-
fully assessed when it comes to investing into ecosys-
tem restoration for coastal areas. This needs to be
done to avoid new forests/new ecosystems being
inundated by increased sea-level rise in the future.
4. The Sphere Project. Available at www.sphereproject.
org/content/view/443/264/lang,english/.
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