
Antarctic (AFP Photo/Torsten Blackwood)
Heidi Cullen is the blame changer. For someone who’s been immersed in the scary realities of global warming for so long, Cullen is surprisingly optimistic. Marius Bugge According to a recent Yale survey, 7 in 10 Americans believe global warming is real and happening. And 6 in 10 believe it is affecting U.S. weather. But only…



