The impacts of climate change are not evenly distributed - the poorest countries and people will suffer earliest and most. And if and when the damages appear it will be too late to reverse the process. Thus we are forced to look a long way ahead.
From the executive summary (PDF) of the Economics of Climate Change report from former World Bank Chief Economist Sir Nicholas Stern to Gordon Brown, Chancellor of the Exchequer in the UK government. The report is being covered by all the major news websites, but I liked the coverage on BBC News, which includes downloads and quotes from this morning's round of press conferences.
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