Today's meme seems to be: the planet has cooled during George Bush's regime.
This conclusion seems based on the following graph, which has been around for a month or two now:
I first saw this graph on a post of Lorne Gunter at the National Post in Canada (who I consider and extremely biased, unreliable source on climate change news and analysis). I asked him how it was derived -- how the trend line was calculated-- but he didn't respond. Nor has anyone else I've asked since.
It looks very suspicious to me: the graph dips awfully suddenly in the last two years, while not lurching upward at all during the El Nino warm period circa 1997-99. Until I see this calculation, I simply can't believe it.