1 Ole John Nielsen Copenhagen Center for Atmospheric Research Department of Chemistry University of Copenhagen Climate change after Copenhagen 2009

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5 2. Social and Environmental Disruption

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8 Ocean acidification Challenge to marine biodiversity and ability of oceans to function as sink of CO 2 Southern Ocean and Arctic ocean projected to become corrosive to aragonite by Turley et al 2006

9 (Smith et al PNAS) Updated Reasons for Concern EU 2°C-Guardrail Source: H.J. Schellnhuber

10 3. Long-term strategy: Global Timetables and targets.

11 3. Long-term strategy: Global Timetables and targets.

12 4. E q u i t y D i m e n t i o n s

13 5. Inaction is inexcusable

14 6. Meeting the challenge

15 6. Meeting the challenge

16 71% covered by water Water from the perspective of an atmospheric chemist

17 Water gives life and water takes lives

18 Industry Nature Drinking water Energy and regulation Agriculture

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20 Most disputes over water occur in areas where water supplies are uncertain

21 Sea level rise and drinking water in western Denmark Other effects of climate change must be added

22 Thank you for your attention The stone age did not end for the lack of stone And the oil age will end long before we run out of oil

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