Dr. Richard Bradbury, the head of the “people conservation science” team at the Centre for Conservation Science of the Royal Society for the Protection of Birds (RSPB) and honorary research fellow at Cambridge University. He discusses research on the economic value of intact ecosystems and the economic benefits of protecting nature – calculations which rely, in part, on the social cost of carbon. This interview was aired on Planet Philadelphia, a radio show about our shared environment, on 92.9FM WGGT-LP in Philadelphia and streamed on at gtownradio.com.For more information go to: www.planetphiladelphia.com| @planetphila