From sea to sky, in this episode we tackle environmental issues. First, correspondent Angie Crouch brings us the story of a coalition of Southern California cities that say they're too poor to meet the state's clean water standards and are taking unprecedented legal action to make their case. Next, correspondent John Ridley heads to Death Valley National Park, which has one of the darkest skies in the United States — for now. It seems the visible universe is under threat of annihilation from Las Vegas as that city grows and dumps more and more light into the sky. Next up, anchor Val Zavala has an update for our investigation "Billboard Confidential." And we close with some thoughts from commentator Sandra Tsing Loh, who says she is glad you are doing what you can about global warming; she just doesn't want to hear the details.