1. IPCC2007: Science for Policymakers

2. Acidification of ocean ADCC

3. Black =observed Simulations Blue=natural forcings due to solar activity and volcanoes ONLY; 19 sim’ns from 5 climate models Red = both natural AND anthropogenic forcings 58 sim’ns from 14 climate models. 5–95% confidence ranges shaded

4. Atmosphere-Ocean General Circulation multi-Model average projections for the B1 (top), A1B (middle) and A2 (bottom) SRES scenarios 1980-99 vs 2020-29 vs 2090-99 IPCC Sc/Pkrs 2007

5. % rainfall change, for SRES A1B 2090-99 vs 1980-99 Dec-Jan-Feb June-July-Aug Multiple simulations White=> mixed results Stippled=> sign agreed IPCC ScPkrs 2007

6. IPCC AR4 Impacts SPM

8. Spring flowers One of several figures from the (see go/px272 for online access)

9. Climate sensitivity of key staple crops

13. IPCC2007: Changes in temperature, sea level, northern snow cover

16. Vulnerability of W Antarctica Ca 70m sleq total Ca 6m sleq possibly vulnerable

17. Science 2007 (DOI: 10.1126/science.1136843) Sea level rise particularly underpredicted (note measurement change at 1993: tide gauges -> satellite data)

18. IPCC AR4 Impacts TS Increased vulnerability of coastal deltas to flooding

19. Thermohaline reduction vs T rise ADCC 2007

20. California

22. Under-prediction of rise by previous IPCC reports. Solid=actual Science 2007 (DOI: 10.1126/science.1136843)