John Kerry mocks those who deny climate change

Secretary of State John Kerry takes a selfie with a group of students before delivering a speech on climate change on Sunday, Feb. 16, 2014, in Jakarta, Indonesia. Climate change may be the world's "most fearsome" weapon of mass destruction and urgent global action is needed to combat it, Kerry said on Sunday, comparing those who deny its existence or question its causes to people who insist the Earth is flat. (AP Photo/ Evan Vucci, Pool)JAKARTA, Indonesia (AP) — U.S. Secretary of State John Kerry on Sunday called climate change perhaps the world's "most fearsome" destructive weapon and mocked those who deny its existence or question its causes, comparing them to people who insist the Earth is flat.