Walt wrote:

"We estimate that the sun contributed as much as 45-50% of the 1900-2000
global warming, and 25-35% of the 1980-2000 global warming."

IOW, some scientists published a model where about a quarter of the
global warming is explained by solar variation. That hardly refutes the
fact that there's a consensus about the reality of the earth becoming
warmer. Or the consensus view that human behavior is a factor.

Please see http://www.sciencemag.org/cgi/conten.../306/5702/1686 for
a survey view of consensus scientific opinion.

http://www.ncpa.org/ba/ba230.html

A nice rational look at the topic.

http://xtronics.com/reference/globalwarming.htm

A look at what consensus really means, based on history.

http://www.crichton-official.com/spe...s_quote04.html