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Greenhouse: Shark attack survivors

53:39

The Citizen Drone Project’s Mark Devries talks to Tony Dokoupil about an investigation into the massive lagoons of pig manure in North Carolina. Plus, Greenhouse talks about shark attack survivors and how they have now become the biggest shark conservationists. Dokoupil later has a conversation with Professor David Victor about whether it is possible to beat the threat of climate change. And we take a look at what cosmologists are saying now about the Big Bang Theory and how Americans seem to be less happy today than a year ago. Greenhouse airs Thursdays at 12pm ET on Shift.