Ocean Acidification Summary for Policymakers (2013)
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Ocean Acidification Summary for Policymakers (2013)

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The Ocean Acidification Summary for Policymakers was published in 2013. It summarises key findings from the Ocean in a High CO2 World Symposium, which is sponsored by the International......

The Ocean Acidification Summary for Policymakers was published in 2013. It summarises key findings from the Ocean in a High CO2 World Symposium, which is sponsored by the International Geosphere-Biosphere Programme, the Intergovernmental Oceanographic Commission of UNESCO and the Scientific Committee on Oceanic Research.

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http://ocean-acidification.net/

Summary for Policymakers
http://www.igbp.net/publications/summariesforpolicymakers/summariesforpolicymakers/oceanacidificationsummaryforpolicymakers2013.5.30566fc6142425d6c9111f4.html

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  • To be launched at COP-19 in Warsaw in November.Unique features:- Great infographics- Confidence levels (like IPCC) on statementsNB. First bullet: Oceans [H+] has increased by 26 % since the start of the industrial revolutionEcosystems will change in the future, but how is difficult to predictThe magnitude of the socio-economic impacts are uncertain.Some people will need to adapt. E.g. Shellfish industry is already adapting on Pacific US coast.
  • http://www.igbp.net/download/18.30566fc6142425d6c91140a/1385975160621/OA_spm2-FULL-lorez.pdf

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  • 1. Ocean Acidification Summary for Policymakers 2013 International Geosphere-Biosphere Programme Intergovernmental Oceanographic Commission of UNESCO Scientific Committee on Oceanic Research Wendy Broadgate, IGBP Deputy Director (2014)
  • 2. • 26 % increase in acidity due to CO2 emissions • Many organisms show adverse effects (corals, molluscs) • Some thrive (e.g. seagrasses) • Ecosystems will change in the future • There will be socio-economic impacts and need for adaptation • Reducing CO2 emissions will reduce impacts
  • 3. pH 1850
  • 4. pH 2100
  • 5. Aragonite saturation 1850
  • 6. Aragonite saturation 2100
  • 7. Commercially important organisms
  • 8. After Peters et al., 2013 Observed CO2 emissions and emissions scenarios to 2100
  • 9. Confidence levels (IPCC)
  • 10. iStockhphoto.com/ermingut
  • 11. Atmospheric CO2 and ocean pH
  • 12. After Bopp et al., 2013 3.2°–5.4°C Global temperature increase likely by 2100: 0.9°–2.3°C Ocean surface pH projections to 2100
  • 13. Turley et al., 2006 Rapid ocean acidification
  • 14. Jason Hall-Spencer Winners and losers
  • 15. Hot, sour and breathless
  • 16. Molluscs iStockphoto.com/Eduardo Luzzatti
  • 17. Coral Reefs iStockphoto.com/t.light
  • 18. Changes in marine ecosystems iStockphoto.com/Richard Carey
  • 19. Calcifying organisms Ulf Riebesell; GEOMAR
  • 20. Marine snails Steve Ringman
  • 21. Fish behaviour
  • 22. Nitrogen fixation stimulated NASA's Goddard Space Flight Center/USGS)
  • 23. Economic losses iStockphoto.com/Thomas Bradford
  • 24. Economic losses
  • 25. Fisheries
  • 26. Biogeochemical cycles
  • 27. www.ocean-acidification.net
  • 28. IGBP, IOC, SCOR (2013). Ocean Acidification Summary for Policymakers – Third Symposium on the Ocean in a High-CO2 World. International Geosphere-Biosphere Programme, Stockholm, Sweden. Authors Wendy Broadgate, IGBP Ulf Riebesell, Germany Claire Armstrong, Norway Peter Brewer, USA Ken Denman, Canada Richard Feely, USA Kunshan Gao, China Jean-Pierre Gattuso, France Kirsten Isensee, IOC-UNESCO Joan Kleypas, USA Dan Laffoley, UK James Orr, France Hans-Otto Pörtner, Germany Carlos Eduardo de Rezende, Brazil Daniela Schmidt, UK Ed Urban, SCOR Anya Waite, Australia Luis Valdés, IOC-UNESCO Wendy Broadgate, IGBP Deputy Director (2014) wendy@igbp.kva.se www.ocean-acidification.net