Pine beetle infestation leads to greenhouse gas: "Insect kills trees that absorb carbon dioxide in the atmosphere
Margaret Munro, Canwest News Service
Published: Thursday, April 24, 2008
The tiny mountain pine beetle has transformed British Columbia's vast pine forests into a major source of greenhouse gases, federal scientists say.
By the time the unprecedented infestation ends, the rice-sized beetles will have killed so many trees that an extra billion tonnes of carbon dioxide will be wafting through the atmosphere, researchers from the Canadian Forest Service report in the journal Nature today."