NYT's Coral Davenport - November 30. 2014: 'Without a deal, they ['scientists'] say, the world could eventually become uninhabitable for humans.'
'While a breach of the 3.6 degree threshold appears inevitable, scientists say that United Nations negotiators should not give up on their efforts to cut emissions. At stake now, they say, is the difference between a newly unpleasant world and an uninhabitable one.'
'Without a deal, scientists say, eventual human extinction is possible.'