Most people don't see how climate change is affecting their lives — and that's a problem
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…