Today on The Gist, in anticipation of Sunday's climate march, Bill McKibben joins us for a round of "One Question, One Question Only." He's the author of Oil and Honey and founder of 350.org. Then, musician Xavier Dphrepaulezz has finally found his voice as Fantastic Negrito. We'll hear how he got here, and a few tracks from his EP. For the Spiel, Mike reclaims the word radio. Get The Gist by email as soon as it's available: slate.com/GistEmail Subscribe to the podcast in iTunes: itunes.apple.com/us/podcast/slate…id873667927?mt=2

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