lunedì 22 settembre 2014

NYT Science: For Polar Bears, a Climate Change Twist

For Polar Bears, a Climate Change Twist
By JAMES GORMAN

Warmer temperatures are giving polar bears less time to hunt seals but leading them to a new source of food, snow geese, with devastating results to plants.

Published: September 23, 2014 at 4:00AM

via NYT Science http://ift.tt/XO5Jvq