H2O is by far the most important greenhouse gas.
ScienceDaily (Mar. 4, 2011) — As carbon dioxide levels have risen during the last 150 years, the density of pores that allow plants to breathe has dwindled by 34 percent, restricting the amount of water vapor the plants release to the atmosphere, report scientists from Indiana University Bloomington and Utrecht University in the Netherlands in an upcoming issue of the Proceedings of the National Academy of Sciences.
http://www.sciencedaily.com/releases/2011/03/110303111624.htm
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AAARRRRGGGHHH!!!!! The plants are hogging all the water!!! Quick! Get the chainsaws and mowers fired up!
Science daily….the same periodical that gave us the linear relationship of CO2 and temps.
Just means plants are more water-efficient with increased CO2.
Just like Craig Idso has demonstrated experimentally
[yawn]