Concentration of greenhouse gases, especially CO2, have increased substantially since the beginning of the industrial revolution. And the National Academy of Sciences indicates that the increase is due in large part to human activity.
George W. BushListen, Al Gore is a very tough opponent. He is the incumbent. He represents the incumbency. And a challenger is somebody who generally comes from the pack and wins, if you're going to win. And that's where I'm coming from.
George W. BushThe terrorists are fighting freedom with all their cunning and cruelty because freedom is their greatest fear - and they should be afraid, because freedom is on the march.
George W. Bush