Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Aug 16, 2010
Heat waves, droughts and floods have been wreaking havoc across the globe in recent weeks, and now scientists say a 250 square kilometer island of ice has broken off from a glacier in Greenland. As, VOA's Carla Babb reports, some are blaming this huge chunk of ice on global warming, while others say such breaks in the Arctic ice are a normal occurrence.