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Understanding Ocean Acidification and Climate Impacts from IPCC 2007 Reports

This report highlights the findings from the IPCC 2007 assessments on ocean acidification, climate sensitivity of staple crops, and sea-level rise projections. It emphasizes the observed changes in ocean chemistry due to both natural and anthropogenic factors, along with expected future impacts under various SRES scenarios. The report also sheds light on the vulnerability of coastal regions and the importance of accurate climate modeling in forecasting potential environmental changes, including extreme weather events and changes in rainfall patterns.

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Understanding Ocean Acidification and Climate Impacts from IPCC 2007 Reports

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

  6. IPCC AR4 Impacts SPM

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

  8. Climate sensitivity of key staple crops

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

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

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

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

  13. Thermohaline reduction vs T rise ADCC 2007

  14. California

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

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