....And read the journals instead of the IPCC reports.
*Bill Nye, the Science Guy you ain't....
1. "Rising CO2 levels as the only accepted mechanism" is true for those who believe it is the only accepted mechanism, which many qualified atmospheric scientists, climatologists, oceanographers, glaciologists, etc. disagree with. Strong correlations with methane levels have been presented recently in peer reviewed journals.
2. The statement that "the historic record has always correlated with increasing temperature IN THE ABSENCE OF INCREASING CO2" simply isn't true.
Sun spot activity, while generally well correlated with increasing temperature over long time scales (the Milankovich Theory), has shown anti-correlations at times, over shorter time scales, pointing to other causes for short term changes ("short term" involving multi-decadal to century time scales). For example, between approximately 1930 and 1960, sunspot activity increased dramatically, as did CO2 emissions (due to WWII and post war reconstruction), while the temperature significantly dropped until the early 1970's, leading to the response by some climatologists in the 1980's (like James Hansen) that emissions would soon cause an ice age.
3. It is
not impossible to prove that cosmic rays can encourage cloud formation. Svensmark and the team at the Danish National Space Center just did experiments that yielded compelling results in favor of a cosmic ray role in cloud condensation nuclei (CCN) formation, which needs to be studied further. Thats how science works. And oh yeah, the journal paper on that study passed_ peer review_ for the Proceedings of the Royal Society, a proanthropogenic global warming (AGW) journal. So real scientists give it credibility.
*..which is good too, since Richard Lindzen chewed him up and spit him out on Larry King Live...
