In Al Gore's brand-new slideshow (premiering exclusively on TED.com), he presents evidence that the pace of climate change may be even worse than scientists were recently predicting, and challenges us to act with a sense of ''generational mission'' -- the kind of feeling that brought forth the civil rights movement -- to set it right. Gore's ...

The complete documentary produced and aired by BBC Channel 4 in Great Britiain 2007. Has political hype skewed the scientific debate over this complicated, controversial topic? Hear the opposing viewpoint. Some ideas presented in this video are outdated or highly speculative/controversial in their own right. Wikipedia link spells out ...