For centuries, we have been willing to sacrifice places, ecosystems, and entire species for industries like steel. While steel is one of the most useful materials humans have ever created, it’s also one of the most damaging to the climate and to the people who work in and live near these mills. These conditions help explain why the workers in the steel mills of Gary in the first half of the 20th century came from two main groups: newly arrived immigrants and African Americans who had moved up from the southern United States.

This is Threshold Season 4: “Time to 1.5.” In this episode, we explore the intersection of racism, industrialization, and climate change in Gary, Indiana. Also Michael Jackson.

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