Playing Climate Change Poker

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Science  20 Jul 2007:
Vol. 317, Issue 5836, pp. 295
DOI: 10.1126/science.1146513

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Targets can be troublesome things. If they're set for some distant future date, the target setter may not live long enough to see if they've been met. Interestingly, much discussion about tackling climate change anticipates having achieved something by the middle of this century. What's the target? Both the European Union (EU) and, at a national level, the United Kingdom have focused on a COemissions cut of at least 60%, which is intended to reduce average global warming by 2°C. (The June G8 summit also spoke of an emissions cut of 50% globally, but only in the context of exploring such a goal and with no greenhouse gas stabilization target in mind.)

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