Grey whale deaths on West Coast may be linked to Arctic warmth

ANCHORAGE, Alaska (Reuters) - Dozens of grey whales have been found dead along the U.S. West Coast in recent weeks and some scientists believe the cause lies far to the north, in the heated-up Arctic waters off Alaska.

Fifty-eight grey whales have been found stranded and dead so far this year in sites stretching from California to Alaska, according to the National Oceanic and Atmospheric Administration (NOAA).