A sensible strategy to minimize the damages from anthropogenic climate change has two objectives: mitigate the pace and ultimate magnitude of the changes that occur and adapt to the changes that cannot be avoided. To underline this two-pronged approach, the recent report Confronting Climate Change, prepared for the United Nations (UN) by an international panel we co-chaired, was subtitled Avoiding the Unmanageable and Managing the Unavoidable (www.unfoundation.org/SEG/). On 27 February 2007, we presented UN Secretary-General Ban Ki-moon with this urgent call for new levels of commitment and coordination by the UN and its member states to avoid the worst climate-change dangers while there is still time.
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