"When McCain and Joe Lieberman introduced legislation empowering Congress to comprehensively regulate U.S. industries' emissions of greenhouse gases in order to "prevent catastrophic global warming," they co-authored an op-ed column that radiated McCainian intolerance of disagreement. It said that a U.N. panel's report "puts the final nail in denial's coffin about the problem of global warming." Concerning the question of whether human activity is causing catastrophic warming, they said, "the debate has ended."

Interesting, is it not, that no one considers it necessary to insist that "the debate has ended" about whether the Earth is round. People only insist that a debate stop when they are afraid of what might be learned if it continues." -- George Will