Can Canada's forests survive climate change?
Ten thousand years ago, when the last ice age gave way to the Holocene, a great migration was triggered in North America: trees began travelling northward, colonizing newly thawed landscapes at a pace of up to 500 metres a year. In a geoclimatic blink of an eye, trees colonized 38 per cent of the landmass now known as Canada, ultimately giving us nearly a 10th of all the forest in the world.