after years pressing his thumb on the denialist end of the scale, Bjorn Lomborg sees the light (feels the heat?).

With scientific data piling up showing that the world has reached its hottest-ever point in recorded history, global-warming skeptics are facing a high-profile defection from their ranks. Bjorn Lomborg, author of the influential tract "The Skeptical Environmentalist," has reversed course on the urgency of global warming, and is now calling for action on "a challenge humanity must confront."

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Lomborg's essential argument was: Yes, global warming is real and human behavior is the main reason for it, but the world has far more important things to worry about.

Oh, how times have changed.

In a book to be published this year, Lomborg calls global warming "undoubtedly one of the chief concerns facing the world today" and calls for the world's governments to invest tens of billions of dollars annually to fight climate change.

via news.yahoo.com