Add Yahoo as a preferred source to see more of our stories on Google. Nick Beckage, a graduate researcher, Davin Louangaphay, a research assistant, and Philippe Amstislavski, a professor of health ...

We were pushing through head-high willows along a brushy caribou trail, five days into our week-long trek across Alaska’s Noatak valley, when my hiking partner, Brad Meiklejohn, startled me with a ...

Anywhere else in the world, more trees would be a blessing. But in the far north of Alaska, they’re a reckoning. As the Arctic warms up to four times as fast as the rest of the planet, white spruce ...