Tim’s Reviews > A Disgrace to the Profession > Status Update

"Mann begin with a hypothesis that the global temperature record had been pretty stable for 900 years and then in the 20th century it soared up ... Mann put it 'one set of tree-ring records' was 'of critical importance' in conjuring his stick.. only because a tree ring that produces a hockey-stick is given 390 times the weight of a tree ring that does not."