If your fridge has a built-in ice machine, you may have occasionally noticed the ice cubes coming out gray in color. When this first happened to me, I didn’t know what to make of it. Was my ...

Gray whales, a signature of the Washington coast, are dying by the thousands, victims of declines in Arctic sea ice.

Mass changes across the Antarctic ice sheet have been detected using satellite gravimetry, revealing significant ...

Gray whales, a signature of the Washington coast, are dying by the thousands, victims of declines in Arctic sea ice. Boom-and-bust cycles of gray whale populations are normal. But for the first ...