Through long-form audio reporting, Threshold tackles one pressing environmental issue each season. We aim to introduce listeners to diverse perspectives, and to be a home for nuanced journalism about our future on this planet.




We're hard at work producing season two of Threshold, which will take you on an epic journey around the Arctic. Below you can hear a preview of one of the stories we're following, which was broadcast on PRI's The World in November, 2017.

In our first season, we explored the complicated past and possible future of the American bison. Could the United States ever live with wild, free-roaming bison again? Should we try?  Listen to the first episode below or the entire season here.



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