development and climate change
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Development and Climate Change. World Development Report 2010. Marianne Fay October 2009. Climate change is a serious and immediate threat but a climate-smart world is possible if we…. New finance, instruments and pressures are helping build momentum. - PowerPoint PPT PresentationTRANSCRIPT
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DEVELOPMENT ANDCLIMATE CHANGE
World Development Report 2010
Marianne Fay October 2009
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New finance, new instruments and new pressures are helping build momentum
CLIMATE CHANGE IS A SERIOUS AND IMMEDIATE THREAT BUT A CLIMATE-SMART WORLD IS POSSIBLE IF WE…
Act now Act together Act differently
New finance, instruments and pressures are helping build momentum
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Source: Smith and others, 2009
SCIENTIFIC CONSENSUS: SERIOUS AND IMMEDIATE2001 assessment2007 assessment
Risks to unique and threatened
systems
Risk of extreme weather events
Distribution of impacts
Aggregate impacts
Risks oflarge scale
discontinuities
5
4
2
0
1
3
Increase in global temperature since pre-industrial era (°C)
2°C over preindustrial
Today = + 0.8°C
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NO COUNTRY IS IMMUNE – ECA SIGNIFICANTLY THREATENED
By 2030, ECA will be much warmer…
+1.6 to+2.6 by mid century
Fewer frost days (- 14 to 30 days)
More heatwaves: Poland and Hungary to experience same number hot days as Sicily today
Implications Melting glaciers; less snow
Melting permafrost, arctic ice
Sealevel rise (except Caspian)
a. Change in Mean Annual Temperature (2030-2049; 1980-1999; A1B; 8 GCMs)
d. Change in Number of Frost Days (2030-2049; 1980-1999; A1B; 8 GCMs)
e. Change in Heat Wave Duration Index (2030-2049; 1980-1999; A1B; 8 GCMs)
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And will suffer more droughts and floods…
Precipitation will increase everywhere but in Southern ECA and Central Asia
But water availability will decrease everywhere but Russia
Increased precipitation intensity almost everywhere
a. Change in Mean Annual Rainfall (2030-2049; 1980-1999; A1B; 20 GCMs)
b. Change in Runoff (2041-2060; 1900-1970; A1B; 8 GCMs)
d. Change in Daily Maximum 5 Day Rainfall (2030-2049; 1980-1999; A1B; 8 GCMs)
Hatching indicates where at least 2/3 of the models agree with the sign of the change.
NO COUNTRY IS IMMUNE – ECA SIGNIFICANTLY THREATENED
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A CLIMATE-SMART WORLD IS POSSIBLE…
Annual public subsidies
Private funding for energy R&D
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BUT TO MEET THE CHALLENGE, WE MUST
• ACT NOW
• ACT TOGETHER
• ACT DIFFERENTLY
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ACT NOW:TODAY’S ACTIONS DETERMINE TOMORROW’S OPTIONS
Inertia in the climate system
Inertia in thebuilt environment
Inertia in institutions andindividuals’ behavior
feasibility
costs
political momentum
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ACT NOW:
OR THE 2˚C TRAJECTORY IS OUT OF REACHProjected annual total global emissions (billion tons of CO2 equivalent)
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ACT NOW:
MUCH IS AT RISK ALREADY AND WE HAVE TO LEARN TO ADAPT
Urban climate by 2100 (if we don’t act)
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ACT TOGETHER:RICHER COUNTRIES HAVE TO TAKE THE LEAD BUT ALL HAVE A ROLE TO PLAY
-160
-140
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
0 10 20 30 40
Marginal mitigation cost ($/tCO2e)
Mitigation potential
(GtCO2e/year)
Marginal cost, all countries
Mitigation measure in a developing country Mitigation measure in a high-income country
Negative costs:Long-term savings outweigh initial costs
Advanced technologies:carbon capture and storage
Efficiency in buildings
Efficiency in motors, cars, and electricity co-eneration
Land-use and land-use change, mostly in developing countries
Small hydro and nuclear in developing countries Renewable energy:
Wind and solar
Marginal cost, all countries
Gt of foregone mitigation
Marginal cost, only high-income countries
Additional cost of achieving 10 Gt of mitigation
McKinsey 2009
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ACT DIFFERENTLY:
RADICALLY TRANSFORM ENERGY SYSTEMS
Energy efficiency
0
600
800
1,000
1,200
200
400
1,400
2000 2020 2040 2060 2080 2100
Global primary energy mix (exajoules)
Year
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ACT DIFFERENTLY:
TO MANAGE A CHANGING WORLD
To take advantage of the opportunities that could arise Kazakhstan, Russia, Ukraine to “feed the world”? Warmer temperatures, carbon fertilization… but land and
water? Agriculture and forestry yield gap much higher than
potential increase from climate change Northern expansion…requires infrastructure
Make robust rather than optimal decisions
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MAKING IT HAPPEN:
NEW RESOURCES
To reconcile equity and efficiency
Requires massive scaling-up From $9 bn to $170-$275 Bn in 2030 A financing challenge: $250-$550 bn in associated mitigation finance
It can be done: Requires all options available Financing = 3% global investments
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To support communities and decisionmakers Low-tech and high-tech
MAKING IT HAPPEN:
NEW INSTRUMENTS
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Increasing awareness and concern Individuals and organizations are responding Politics are changing
More is needed to turn awareness into action “ Soft” policy tools - communication and education;
social norms Create institutional mechanisms to deal with new
challenges
MAKING IT HAPPEN:
NEW PRESSURES
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http://blogs.worldbank.org/ climatechange/
http://worldbank.org/wdr2010
http://www.worldbank.org/eca/ climatechange