Wildfires move Canadian forests from sink to source

Paul RacetteClimate

Increase in frequency and size of fires affects carbon-absorption properties of boreal forests. “The recent several decades of wildfires are changing the boreal forest from a weak carbon sink – that is the forest and soil are accumulating carbon and helping offset rising atmospheric carbon dioxide concentration – to a weak carbon source,” Stith Gower of the University of Wisconsin told environmentalresearchweb.