LAST UPDATED DECEMBER 9, 2014
Canada is being challenged about its own domestic record in addressing the heat-trapping pollution that contributes to global warming.
Here’s a historical timeline of some of the major climate change policies, statements and related decisions made by Canada since 2006 when Prime Minister Stephen Harper was first elected to form a government.
From a pledge to introduce a carbon tax in 2007 to internal debates about climate change science, this timeline covers the promises and the action by the Canadian government in recent years.