Climate change is the biggest science issue in the world, and the biggest science issue in the upcoming US election. Who is the front runner? If you look at the parties, it's a no-brainer: the Dems snatched control of both houses of Congress on 2006, and have so far made good on their promises to fight climate change. The Republicans under GW Bush have a lousy record. ..... Among the three leading candidates, you might assume that one of the Democrats ... is the most environmentally friendly. Both senators have made big promises to cut emissions and fund clean energy research. Republican front runner John McCain has a set of climate credentials that arguably eclipses them both. He has railed against inaction on the issue since long before it was fashionable. ...
Of the three, who is best placed to implement an aggressive policy to curtail global warming? The surprising answer may be McCain. Clinton and Obama's big promises could bring other large emitters like China and India into line behind the US. That's important ... but McCain is the only candidate battle-hardened by years of defending his climate-change bills on the Senate floor. ...
In short then, McCain has the greenest credentials; the Democrats the greenest promises.
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