This list of 10 startling global warming facts was compiled by Environmental Defense.
Rank of 2006 among hottest years on record in the continental U.S.
Rank of U.S. as a global warming polluter, among all countries in the world
Projected number of people displaced globally by droughts, sea-level rise, and flooding by 2080, if global warming is not corrected
Increase in U.S. carbon-dioxide emissions from the burning of fossil fuels since 1990
Increase in U.S. carbon-dioxide emissions forecast by 2020, if we don't cap pollution
Decrease in U.S. global warming pollution required by 2050 to prevent the worst consequences of global warming
Days by which the U.S. fire season has increased over the past 20 years tied closely to increased temperatures and earlier snow-melt
U.S. mayors (representing 57 million Americans) who have signed the U.S. Mayors Climate Protection Agreement pledging to meet or beat Kyoto goals in their communities
Federal bills passed to cap America's global warming pollution
Mentions by President Bush of "climate change" or "global warming" in his last six State of the Union speeches, previous to his most recent speech
Sources: The U.S. National Climatic Data Center, the United Nations Framework Convention on Climate Change, Environmental Protection Agency, the Stern Review on the Economics of Climate Change, Science, U.S. Mayors Climate Protection Agreement