Winnipeg Free Press - PRINT EDITION

Letter of the day

Greenhouse nonsense

Re: Human, animal breath creates 50% of GHG, pessimist warns, March 9.

The notion that human or animal breath is a major contributor to greenhouse gas emissions is nonsense. There were just as many animals on the planet 10,000 years ago -- fewer humans, more mastodons. Still, there has been a 37 per cent increase in carbon dioxide in the air since the industrial revolution. This has nothing to do with the number of breathers on Earth. We only breathe in what the plants breathe out.

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What has changed is that now, with our automobiles and coal-fired electricity plants, we have found a way of releasing the huge stores of carbon from millennia past.

Only a shift in the way we live can stem the rise in greenhouse gases, not a shift in the number of creatures living.

 Josh Brandon

Living Green Living Well

Resource Conservation Manitoba

Winnipeg

Republished from the Winnipeg Free Press print edition March 11, 2009 A10

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