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Carbon good

BY DAVE W. REESOR, CALGARY HERALD DECEMBER 7, 2011
 
Re: "Vapour caper," Letter, Dec. 6.

Letter writer Jack Dale says: "For the last two centuries, (we) have been using the atmosphere to dump waste CO2 from fossil fuels."

Actually, it's having a very good effect. Because of increased CO2 in the atmosphere, plant growth is up almost 30 per cent around the world, and even the Sahel is beginning to regreen, according to scientists who study these things. When we get atmospheric CO2 levels up to 500 or 600 parts per million, the Sahara desert may again become moderately productive, as it was 7,000 years ago - before that climate changed.

Dave W. Reesor, Calgary

© Copyright (c) The Calgary Herald

Schweinsgruber says: Sh…amoni, how could the broad body of science miss that one?