Now, Mann is telling his side of the story in a new book, "The Hockey Stick and the Climate Wars: Dispatches from the Front Lines" (Columbia University Press, 2012).

The report moved quickly through climate science circles. Mann and a colleague soon lengthened the shaft of the hockey stick back to the year 1000 AD--and then, in 2001, the UN's Intergovernmental ...

Colin Laroque, head of the dendrochronology lab at Mount Allison, said tree-ring aging is being used to compare the hockey stick to living trees near North Sydney, N.S.

Indeed, two just-published studies support the hockey stick more powerfully than ever. One, just out in Nature Geoscience, featuring more than 80 authors, showed with extensive global data on past ...