[alloysteel]

Once again, with feeling. The most important “greenhouse gas” of all is water vapor, which simply because of its overwhelming presence, is of a magnitude of 20 times to 100 times of ANY other potential candidate as a “greenhouse gas”, specifically carbon dioxide. And any other “greenhouse gas”, like sulfur dioxide, is of such small concentration in our atmosphere, it constitutes no recognizable capability to serve as a significant reservoir of heat.

And without sufficient carbon dioxide, plants would unable to produce free oxygen and the various carbohydrates (cellulose, starch, lignin, sugar) so important to our daily lives.

[Ernest_at_the_Beach]

Two Scientists go at it,...Greenhouse gases and water vapor in the discussion:

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Bill Gray, Professor Emeritus, Colorado State University

writes a rebuttal to

Kerry Emanuel who is director of the Program in Atmospheres, Oceans, and Climate at Massachusetts Institute of Technology.

Boston Globe (15 February 2010) Op/Ed piece titled
“Climate Changes Are Proven Fact.”

PDF Link

PROF BILL GRAY REBUTS CLAIM THAT CLIMATE CHANGES ARE PROVEN FACT