Study: The language used by the global climate change watchdog, the IPCC, is overly conservative – and therefore the threats are much greater than the Panel's reports suggest. Credit: CCO Publlc domain.
The northern edge of North America is getting steadily greener. In the most detailed study so far of plant growth across Alaska and Canada, scientists say that about a third of the land cover now looks less like tundra, and more like a warmer ecosystem. Story here.