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To: Old Professer
My comment was based partly on this:

Climate myths: Higher CO2 levels will boost plant growth and food production

"Studies of past climate changes suggest the land and oceans start releasing more CO2 than they absorb as the planet warms. The latest IPCC report concludes that the terrestrial biosphere will become a source rather than a sink of carbon before the end of the century."

and this:

Higher Carbon Dioxide Lack Of Nitrogen Limit Plant Growth

The main self-limiting factor is nutrients; if the CO2 fertilization effect enhances plant growth, then the augmented growth requires more nutrients, which become depleted from the soils faster, and then the growth slows down.

67 posted on 01/22/2008 1:02:27 PM PST by cogitator
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To: cogitator

Guess that’s why the securities (stocks) of fertilizer producers have been on a tear. (TNH, MOS, & etc.)

Maybe the reason CO2 levels are up is because they are taking nitrogen from the air and putting it in fertilizer and liquid nitrogen storage.

I just can’t believe that 380ppm of CO2 in the air causes global warming. This is .000038% of the total. I believe that other more absorbent substances would be much more of a trapping mechanism for heat. Like dust, water vapor, particulates from smoke, and the like.


68 posted on 01/22/2008 1:59:21 PM PST by westmichman ( God said: "They cry 'peace! peace!' but there is no peace. Jeremiah 6:14)
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