Link to the Show / Show NotesNPR Science correspondents Richard Harris and Christopher Joyce are just back from two weeks in Japan, and they talk about the ongoing nuclear crisis at the Fukushima Dai-ichi nuclear power plant. Also: geothermal heat pumps to warm and cool your home, and biologists who study ecosystems are doing something new: listening to the environment. It's a burgeoning field called "soundscape ecology."

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