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Johannes Lückenkötter / Maggie Thabet
Plan + Risk Consult / GIZ PDP
Cairo, May 5th 2015
Climate Change, Vulnerability and Adaptation
in Selected Urban Areas
Overview for the 2nd Stakeholder Workshop
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Overview
1. Climate change in Greater Cairo
2. Vulnerability to climate change in selected areas
3. Option for adaptation to climate change
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Analysis of climate observation data
Space Science Centre,
Cairo University 2014
based on weather station
data of the Egyptian
Meteorological Agency
Helwan
EMA
Cairo
Airport
Bathiem
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Analysis of climate indicator projections
Downscaled Reg4CM data
(ca. 15 km grid size)
for 4 locations
Helwan
EMA
Cairo
Airport
Bathiem
Reg4CM data
(ca. 50 km grid size)
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Annual mean temperature
Slight warming up
in the past
(1961 – 2011)
It is getting much
warmer
in the future:
1961-1990 -> 2021-2050: + 1.1 °C
1961-1990 -> 2071-2100: + 3.5 °C
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Hot days (over 35°C)
Increase of hot days
in the past
especially
in peripheral areas
High increase of hot days
in the future:
1961-1990 -> 2021-2050: + 62 %
1961-1990 -> 2071-2100: + 162 %
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Hot nights (over 25°C)
High increase
of hot nights
in the past
Tenfold increase of hot nights
in the future:
1961-1990 -> 2021-2050: + 925 %
1961-1990 -> 2071-2100: + 1025 %
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Temperature inversion days
Very slight increase
in the past
But significant increase
in the future:
1961-1990 -> 2021-2050: + 30 %
1961-1990 -> 2071-2100: + 35 %
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Overview
1. Climate change in Greater Cairo
2. Vulnerability to climate change in selected areas
3. Options for adaptation to climate change
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Physical vulnerability to climate change
analysed and compared:
Ezbet El-Nasr,
Masaken Geziret El-Dahab,
Ain Shams and
Markaz El-Abhath
using
- 3D model of urban environment,
- solar radiation model,
- wind data
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Heating up of buildings due to sun radiation
(example of Ezbet El-Nasr)
Hottest buildings are
low and free
standing.
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Heating up of streets and open spaces by the sun
Coolest streets
where settlement is
dense
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Cooling effects of green areas
Green areas cool
down at night
cooler air spreads to
neighboring areas.
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Cooling effects of wind ventilation
Coolest streets are
either very wide or
run north to south.
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Combined results (hot spots)
Built-up, dense parts
not as affected as
edges and newly
developing areas.
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Overall physical
vulnerability
edges and newly
developing areas.
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Social vulnerability to climate change
Especially vulnerable groups:
Babies Cannot control body temperature well
Sick persons Especially with cardio-vascular, skin
and respiratory diseases
Old persons Weak cardio-vascular system
Poor people Cannot afford costs for adaptation
e.g. air conditioning
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Social vulnerability (summary of Baseline Survey results)
Ain
Shams
Ezbet El-
Nasr
Masaken
Geziret El-
Dahab
Markaz El-
Abhath
Health-related
0.69 1.0 0.94 0.9
Age-related
0.92 1.0 0.94 0.73
Living conditions
related 0.41 1.0 0.5 0.62
Employment-related
0.44 1.0 0.38 0.3
Total social
vulnerability 0.62 1.00 0.69 0.64
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Key impacts of climate change for informal settlements
Health impacts on persons vulnerable due to
age and existing illnesses,
on well-being and agility of all
residents
Economic impacts increasing prices and fluctu-
ations of energy, water, food;
impacts on household and
businesses
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Overview
1. Climate change in Greater Cairo
2. Vulnerability to climate change in selected areas
3. Options for adaptation to climate change
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Different levels and types of adaptation
Behavioural adaptation Settlement level
Physical adaptation City level
Institutional adaptation National level
International level
Adaptation to extreme events
Adaptation to gradual changes
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PDP pilot adaptation measures at settlement level
Public space related Street cover (green/textile)
Community garden
Sidewalk garden
Building related Rooftop garden/farming
Rooftop cover (green/textile)
Green walls
Façade painting/plaster
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Shading Street Cover
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Sidewalk Garden
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Greening of walls
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Rooftop Farming
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Shading Rooftop Cover
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Façade Painting
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Façade Plastering