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  4. James Hansen
  5. ...99 percent confident that the world really was getting...

...99 percent confident that the world really was getting warmer and that there was a high degree of probability that it was due to human-made greenhouse gases.

James Hansen
Energy, Degrees, World
'FRONTLINE' Transcript, www.pbs.org.
...99 percent confident that the world really was getting warmer and that there was a high degree of probability that it was due to human-made greenhouse gases.