How much is nature worth? One 1997 estimate put its value at $142.7 trillion. But what about those people in China who pollinate apple blossoms by hand? In this episode of Radiolab, Jad and Robert talk with some of my favourite authors, including Carl Zimmer and J.B. Mackinnon, and discover that this simple question – how much is nature worth? – is not very easy to answer.
Photo by flagstaffotos.com.au Canon 20D + Sigma 150mm f/2.8