Keeping it Cool: Sea Otters, New Cars and Old Forests
Special | 26m 46s | Video has closed captioning.
Meet biologists in Washington state exploring the surprising connection between sea otters and climate change; take a test drive in California with some new hydrogen-powered cars that only emit water vapor; and find out how scientists in Wisconsin are working to build a more resilient forest. Also, discover how some Galapagos penguins are surviving warmer temperatures.
Aired: 04/08/14
