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Prove your humanity


Pittsburgh restaurants are recycling oyster shells to help restore the Chesapeake Bay. We report from Scotland about how ethane from Pa.’s fracking boom is fueling the world’s thirst for plastic.  Researchers are trying to figure out what’s killing apple trees. Pennsylvania will join a regional cap-and-trade program for carbon emissions. Using artificial intelligence to predict landslides.

LISTEN to the episode (29:00)