Duke scientists are finding record numbers of humpback whales feeding on krill on the Western Antarctic Peninsula. A new report shows scientists observed more than 300 whales in a bay in May 2009. Scientists say a sheet of ice should have prevented whales from feeding on krill by that time of year. But Duke’s Ari Friedlaender says climate change is shortening the winter season and ice is forming slowly. So the krill are exposed for feeding.
Leoneda Inge has the story of how communities are working towards energy efficiency.
North Carolina has topped many lists in the past few years. It's one of the fastest growing states and ranks high for its business climate. But in energy efficiency, NC is wading somewhere in the middle of the pack nationwide.