The latest issue of Mother Jones Magazine features an incredible (and ominous) article by Julia Whitty on the astonishing loss of biodiversity that this Earth has endured in the last century, and the precipitous increase to come, if we don’t change: "It’s the interaction of lifeforms that make our planet habitable. If we subtract 50% of those lifeforms, we’re going to have a serious time sustainaing life on this planet." Listen to this interview, read the article in Mother Jones, and check out Whitty’s new book The Fragile Edge: Diving and Other Adventures in the South Pacific. LISTEN (11 min)