Plant roots increase carbon emission from permafrost soils

A key uncertainty in climate projections is the amount of carbon emitted by thawing permafrost in the Arctic. Plant roots in soil stimulate microbial decomposition, a mechanism called the priming effect. An international ...

Why would a criminologist support the legalization of marijuana?

The Prime Minister of Canada, Justin Trudeau, spoke out clearly in favour of legalizing marijuana during the election campaign that brought him to power on October 19. Professor Serge Brochu of University of Montreal's School ...