Politics, ScienceAir Date 05/14/2010
Scientists and environmental experts share their observations about the BP oil spill in the Gulf of Mexico and the damage it's causing.
Entertainment, Politics, ScienceAir Date 05/14/2010
Scientists and environmental experts on the BP oil spill; Carol Burnett shares her memoir, "This Time Together."
Politics, BusinessAir Date 03/25/2008
The president of Shell Oil Co., comments on the need for a comprehensive national energy strategy.
Politics, Business, ScienceAir Date 03/25/2008
Shell Oil president John Hofmeister on alternative energy; a discussion about the massive die-off of bats in the Northeast.