article_snippet.sent: This is gambling with planet," said Gernot Wagner, the lead senior economist at the Environmental Defense Fund and co-author of the book "Climate Shock.
article_snippet.sent: It depends on how much risk you want to accept," she said.
article_snippet.sent: Some activists, including those from 350.org and Avaaz, which together organized the largest climate change rally in history last year in New York, want to accept less risk than that.
article_snippet.sent: f***" that would be almost "infinitely costly," said Wagner, the Environmental Defense Fund economist.