day presentation by johan rockstrom
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Key note presentation on Dr. Johan Rockstrom which places the water and food crisis in a wider global perspective.TRANSCRIPT
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CPWF 3rd International ForumSouth Africa14th November 2011
Prof. Johan RockströmStockholm Resilience Centre
Stockholm Environment Institute
The grand challenge for humanity: Water and Food in the Anthropocene
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Growing Human Pressure[20/80 dilemma]
Climate change[560/450/400 dilemma]
Surprise[99/1 dilemma]
Ecosystem decline[60 % loss dilemma]
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Kummu, Ward, de Moel, Varis 2010 Environmental Research Letters
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Water for Food needs to meet the hunger MDG
0
2 000
4 000
6 000
8 000
10 000
1960
1970
1980
1990
2002
2015
2030
2050
year
km
3
0
100
200
300
1960
1970
1980
1990
2002
2015
2030
2050
Increase to reach the Hunger Goal 2015
2002 base line
0
500
1000
1500
2000
2500
3000
3500
2015 2030 2050
(km
3 /yr)
Additional Green
Additional Blue
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23-04-11 Johan Rockström and Carl Folke, Stockholm Resilience Centre
Humanity has reached a planetary
saturation point
A resilient biosphere the basis for humen
development
Climate change one interacting
component of global sustainability
A great transformation to global
sustainability necessary, possible,
and desirable
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Human Development
Resilience Water and
Food in Agricultural Landscapes
Global Environmental
Change
Global Sustainability now a prerequisite to attain the UN Millennium Development Goals
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”When reality is changing faster than theory suggests it should, a certain amount of nervousness is a reasonable response”The Economist
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Atmospheric CO2 concentration
Etheridge et al. Geophys Res 101: 4115-4128
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
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Northern hemisphere average surface temperature
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Mann et al Geophys Res Lett 26(6): 759-762
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Atmospheric N2O concentration
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Machida et al Geophys Res Lett 22:2921-2925
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Atmospheric CH4 concentration
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Blunier et al J Geophy Res 20: 2219-2222
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Ozone depletion
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
JD Shanklin British Antarctic Survey
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Natural climactic disasters
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
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Ocean ecosystems
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
FAOSTAT 2002 Statistical database
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Coastal zone nitrogen flux
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Mackenzie et al 2002.
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Tropical rainforest and woodland loss
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Richards, the Earth as transformed by human action, Cambridge University Press
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Domesticated land
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Klein Goldewijk and Batties
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Species extinctions
IGBP synthesis: Global Change and the Earth System, Steffen et al 2004
Wilson, the Diversity of Life.
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The Planetary Response to the drivers of the Anthropocene
”the great acceleration of the human entreprise”,Professor Will Steffen
1900 1950 2000
CO2, N2O, CH4 concentrations
Overfishing
Land degradation
Loss Biodiversity
…..
2010
-202
0
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20th Century
Population 4X
Economic Output
22X
Fossil fuel consumption
14X
OECD Green Growth Report 2011
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Critical transitions or regime shifts
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1
2
• overfishing, coastal eutrophication
• phosphorous accum- ulation in soil and mud
• fire prevention
3
state shift
• disease, hurricane
• flooding, warming, overexploitation of predators
• good rains, continu- ous heavy grazing
coral dominance
clear water
grassland
4
algal dominance
turbid water
shrub-bushland
Valuable Ecosystem Services Loss of ecosystem services(Desirable) (Undesirable)
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The Resilience of the Earth System
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Humanity’s 10,000 years of grace
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…
Rockström et al. 2009 Nature, 461 (24): 472-475
Global fresh-water use
Transgressing safe boundaries
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Adapted from Canadell et al., 2007
0123456789
10
Resilience of the Earth system
Gt
Carb
on
/yr
land
ocean
atmosphere
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Water Resilience - Managing Moisture Feedback
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WINDOW OF OPPORTUNITY
Preparing the system for change Navigating the transition
Building resilience of the new direction
Australia’s Great Barrier Reef Sweden’s urban landscapesLatin America’s agricultural revolution
Water Resilience:Turning crisis into opportunityA shift in mindset for transformation
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A triply Green Revolution– 2-3 X productivity– Social-Ecological Resilience– Green water management
The new water for food challenge
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