More global warming skeptics...

A good article from the Christian Science Monitor profiling several global warming skeptics...

In a small college town like Corvallis, Ore., it's not unusual that George Taylor would ride a bike to his job on the Oregon State University campus. He commutes this way for the exercise, he says, but also because it's good for the planet.

Mr. Taylor manages the Oregon Climate Service, and much of his work has to do with global warming. "I'm certainly in favor of doing prudent things to reduce the human impact," he says.

But unlike most climate scientists, he does not believe that anthropogenic (human-caused) greenhouse gases – mainly from coal-fired power plants and motor vehicles spewing carbon dioxide – are the main culprits. In fact, he says, "It's my belief that in the last 100 years or so natural variations have played a bigger role."

Among the forces of nature he cites are changes in solar radiation, "very significant influences" of the tropical Pacific (El Niño and La Niña events in decades-long cycles), as well as changes in Earth's tilt and orbit over cycles lasting thousands of years.

Above all, says Mr. Taylor, who is past president of the American Association of State Climatologists, "The climate system is very, very complex, and the more we learn, the more we see that we really don't understand it."