ANCHORAGE, Alaska — Greenhouse gas emissions remain the primary threat to the preservation of polar bear populations worldwide. This conclusion holds true under both a reduced greenhouse gas emission scenario that stabilizes climate warming and another scenario where emissions and warming continue at the current pace, according to updated U.S. Geological Survey research models. Under both […]
A new book from the GLIMS (Global Land Ice Measurements from Space) initiative, an international collaboration including the National Snow and Ice Data Center at the University of Colorado Boulder, provides the most comprehensive report to date on global glacier changes. The book, Global Land Ice Measurements from Space, presents an overview and detailed assessment […]
Slicing through the top quarter of the Alaska map, the Arctic Circle marks the boundary of perpetual light. North of the line, the sun won’t set on summer solstice. But somehow the breezy, treeless tundra of Barrow has a more arctic feel than Fort Yukon, also poleward of the line but home to dense spruce […]