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Posts Tagged ‘atmosphere’

Canada’s tree-mendous discovery: Forests limit harmful ozone gas

It was a Tuesday in early February 2015 when Sylvie Gravel walked into her colleague Paul Makar’s office carrying printouts that would mystify both of them. The two scientists at Environment and Climate Change Canada were staring at computer model forecasts of ozone gas. Up in the Earth’s atmosphere, the ozone layer helps block harmful…

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