An exposé of the plastic industry

April 1, 2026·44 min·4 clips

Microplastics were found in every human brain sample studied, with higher levels linked to dementia.

The episode starts with touch. Mosley asks listeners to picture toothbrushes, coffee cups, phones, and shoes, using those everyday things to show how plastic slipped into almost everything. The history begins in war. Here, plastic first shows up as insulation for radar cables during World War II, before scientists find more uses and plastic moves after the fighting into kitchens, cars, clothing, and medicine. Convenience is where the story bends. By the 1950s, the conversation says, companies were racing to make plastic disposable, and that helped build the throwaway culture Gardner is tracing. Gardner puts it plainly. Millions of people try to use less plastic, but she argues the fossil fuel industry keeps making more because plastic is big oil's plan B. The interview gets more uneasy from there. Mosley stops on a familiar assumption: if a chemical is sold in a bottle or baby-food container, most people figure someone has already proved it safe. Gardner says that is not how it worked. She points to the Toxic Substances Control Act and 1976, in the same lawmaking era as the Clean Air Act and Clean Water Act. Those laws are described as stronger and more accountable. The chemical law, in Gardner's telling, was built to fail. It treated chemicals as innocent until proven guilty, with 60,000 grandfathered in because they were already on shelves. The numbers land hard. Over 40 years, Gardner says she thinks only five chemicals were restricted nationally in any way, even with tens of thousands in use. A later fix did not do much. The law was tightened a little in 2016, but Gardner tells Mosley the country has not made much progress since.

As heard by us

Beth Gardner on why the chemical in your baby food container never had to prove it was safe.

The central claim in 'Plastic, Inc.' is easy to miss until it lands: while consumers were cutting back on plastic, the fossil fuel industry was quietly scaling it up -- big oil's plan B. The regulatory context is harder to shake.

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You've been separating your recyclables for years. This explains who you were actually competing against.

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