When disaster strikes and funding fails, some experts and leaders are considering a Plan B: deliberately cooling the planet by reflecting sunlight back into space. This episode traces the science, the politics, and the ethics of geoengineering—from volcanic eruptions to oil companies investing in carbon capture. What happens when the future starts to sound like science fiction?

More from David Keith: https://climate.uchicago.edu/people/david-keith/

More on his Climate Systems Engineering initiative: https://climateengineering.uchicago.edu/

Shocked is part of the University of Chicago Podcast Network and produced by Magnificent Noise for the Institute for Climate and Sustainable Growth, which combines a 360-degree approach to education with frontier research having an impact in front-line communities globally. The Institute’s efforts are driven by the need to balance climate risks with societal growth. To follow or support their work, see our show notes or visit climate.uchicago.edu

Amy Harder is the host, along with co-host, Michael Greenstone, a professor at the University of Chicago and director of the Institute for Climate and Sustainable Growth. Our executive producers are Eric Nuzum, Michael Greenstone, and Sam Ori. Our production staff includes Christine Driscoll, Amy Pedulla, Sophie Bridges, Jamie York, and Samantha Henig. Our sound designer is Kristen Mueller.

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Shanna Germain | The Weight of Salt