Book excerpt: In Lukewarming, two environmental scientists explain the science and spin behind the headlines and come to a provocative conclusion: climate change is real, and partially man-made, but it is becoming obvious that far more warming has been forecast than will occur, with some of the catastrophic impacts implausible or impossible. Global warming is more lukewarm than hot. This fresh analysis is an invaluable source for those looking to be more informed about global warming and the data behind it.