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The Guardian UKThe decision by Barack Obama to appoint John Holdren as his chief scientific adviser deserves widespread welcome. The Harvard academic and former energy expert at the University of California, Berkeley, commands international respect among physicists, climate experts and other researchers. He is an able scientist and is also a vociferous critic of those who still deny our planet is overheating because of humanity's industrial activities.
Sceptics such as academic Bjørn Lomborg have already been singled out by Holdren for some uncompromising criticism. He accused the late author Michael Crichton of "colossal ignorance and arrogance".
Thus Obama, who takes up office on 20 January, has made it clear through Holdren's appointment that global warming is going to be dealt with robustly by his administration. There is no longer room for doubt. Our planet faces a climate catastrophe of our making. Accepting this point is heartening news for the US - and for the rest of the world which, until now, has looked in vain for strong leadership from America in combating global warming. It was in part the hope of a change in US climate policy that helped give last November's presidential elections such keen global interest.
However, there is more to the elevation of Holdren, a former president of the American Association for the Advancement of Science, than the boosting of US climate action. In selecting a scientist of his stature, Obama is signalling clearly that he will be ending policies, introduced by George W Bush, that saw science sidelined and the advice of its practitioners ignored and sometimes distorted by the White House.
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http://www.guardian.co.uk/commentisfree/2008/dec/21/obama-john-holdren