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The Economist
Climate change legislation, dormant for six months, is showing signs of life again in Washington, DC. This week senators and industrial groups have been discussing a compromise bill to introduce mandatory controls on carbon (see article). Yet although green activists around the world have been waiting for 20 years for American action, nobody is cheering. Even if discussion ever turns into legislation, it will be a pale shadow of what was once hoped for.
The mess at Copenhagen is one reason. So much effort went into the event, with so little result. The recession is another. However much bosses may care about the planet, they usually mind more about their bottom line, and when times are hard they are unwilling to incur new costs. The bilious argument over American health care has not helped: this is not a good time for any bill that needs bipartisan support. Even the northern hemisphere’s cold winter has hurt. When two feet of snow lies on the ground, the threat from warming seems far off. But climate science is also responsible. A series of controversies over the past year have provided heavy ammunition to those who doubt the seriousness of the problem.
Three questions arise from this. How bad is the science? Should policy be changed? And what can be done to ensure such confusion does not happen again? Behind all three lies a common story. The problem lies not with the science itself, but with the way the science has been used by politicians to imply certainty when, as often with science, no certainty exists.
From Eli Kintisch in ScienceInsider:
