Judging from the media in recent months, the debate over global warming is now over. There has been a net warming of the earth over the last century and a half, and our greenhouse gas emissions are contributing at some level. Both of these statements are almost certainly true.We should turn the nation upside down and shake and we can't even be completely sure whether the temperature has really gone up? Next time your talking with (well, being lectured by) an AGW enthusiast, ask what the "mean global temperature" actually is and why anyone should care.
11 April 2007
Almost Certainly?
OJ points us to this Newsweek article, which starts out as follows:
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[O]ur greenhouse gas emissions are contributing at some level.
Sure, that statement is almost certainly true - but it's also why the debate over global warming is far from over.
What's the level, and is it enough to care about, and should we attempt to do anything about it ?
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