Projected Impacts of Climate Change Global temperature change - - PowerPoint PPT Presentation

Projected Impacts of Climate Change

1°C 2°C 5°C 4°C 3°C

Sea level rise threatens major cities Falling crop yields in many areas, particularly developing regions

Food Food Water Water Ecosystems Ecosystems Risk of Abrupt and Risk of Abrupt and Major Irreversible Major Irreversible Changes Changes Global temperature change (relative to pre-industrial) 0°C

Falling yields in many developed regions Rising number of species face extinction Increasing risk of dangerous feedbacks and abrupt, large-scale shifts in the climate system

Significant decreases in water availability in many areas, including Mediterranean and Southern Africa Small mountain glaciers disappear – water supplies threatened in several areas

Extensive Damage to Coral Reefs

Extreme Extreme Weather Weather Events Events

Rising intensity of storms, forest fires, droughts, flooding and heat waves Possible rising yields in some high latitude regions

Stabilisation and Commitment to Warming

1°C 2°C 5°C 4°C 3°C 400 ppm CO2e 450 ppm CO2e 550 ppm CO2e 650ppm CO2e 750ppm CO2e 5% 95% Eventual temperature change (relative to pre-industrial) 0°C

Emissions Paths to Stabilisation

10 20 30 40 50 60 70 80 90 100 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100

450ppm CO2e 550ppm CO2e Business as Usual

Global Emissions (GtCO2e/yr)

Global Emissions by Sector

Potential Emissions Markets from Power and Industrial Sectors

2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 European Union (25) United States of America China, India, Mexico, Brazil, South Africa (+5) G7 EU25, Jap, Aus, Can, USA OECD Top 20 Global emitters Million tonnes CO

2 emissions, 2002

Total emissions from fossil fuels Emissions from power and industrial sectors (estimated)

Adaptation: Scaling up Overseas Development Aid