Wednesday, January 25, 2006

More confusion over global warming

Baffled Scientists Say Less Sunlight Reaching Earth

Note this from the story:

"Goode's team says there may be a large, unexplained variation in sunlight reaching the Earth that changes over the course of two decades or so, as well as a large effect of clouds re-arranging by altitude.

How do the findings play into arguments about global warming and the apparent contribution by industrial emissions? That's entirely unclear.

"No doubt greenhouse gases are increasing," Goode said in a telephone interview. "No doubt that will cause a warming. The question is, 'Are there other things going on?'"

What is clear is that scientists don't understand clouds very well, as a trio of studies last year also showed.

"Clouds are even more uncertain than we thought," Goode said."

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