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June 25, 2025 67 mins

Food is a huge climate problem. It’s responsible for somewhere between a quarter and a third of global greenhouse gas emissions, but it concerns a much smaller share of global climate policy. And what policy does exist is often … pretty bad.


On this week’s episode of Shift Key, Rob and Jesse talk with Michael Grunwald, the author of the new book We Are Eating the Earth. It’s a book about land as much as it’s a book about food — because no matter how much energy abundance we ultimately achieve, we’re stuck with the amount of land we’ve got. 


Grunwald is a giant of climate journalism and a Heatmap contributor, and he has previously written books about the Florida everglades and the Obama recovery act. Shift Key is hosted by Jesse Jenkins, a professor of energy systems engineering at Princeton University, and Robinson Meyer, Heatmap’s executive editor.  


Mentioned: 


Preorder We Are Eating the Earth


The real war on coal, by Michael Grunwald


The Senate GOP’s seismic overhaul of clean energy tax credits


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Music for Shift Key is by Adam Kromelow.


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