Spiff, c'mon. Fred did not say the warming we've seen is human-caused, just that some part of it is. That viewpoint is completely compatible with pointing out the sun is causing global warming on other bodies in the solar system. Humans might cause ten percent, the sun ninety percent. His point is, we don't know.
The more critical point was to tie any action by this country to actions by China and India. That kills what is left of Kyoto, and basically means there would be no action, since China and India ain't gonna hamstring their economies.
Who are you defending - Fred or Rudy? All I said is that they both said similar things about human-caused global warming.
~~~ Rudy Giuliani Press Conference, Silicon Valley, Feb 12, 2007
So Rudy believes the scientific experts, many who are leftwing environmental wackos, that there is "significant human cause" to global warming. Fred didn't say that, nor does he believe that.
Significant means substantial.
Giuliani is agreeing with the liberals like Algore and A.Schwarzy, then to folks like Rush Limbaugh and climate expert Bill Gray, meteorology professor emeritus at Colorado State U. Looks like Rudy is solidly with the liberals, AGAIN!