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Most analyses of how to “solve” climate change start from a single, crucial assumption: that carbon emissions and global warming are inextricably linked. Geoengineering is a set of technologies and ideas with the potential to shatter that link. 

Can we use them? Should we? Could they be used in concert with other solutions, or would simply opening the door drain support from those ideas? Even if we did want to deploy geoengineering, who would govern its use? And is mucking with the earth at this level more dangerous than climate change itself — which may, ultimately, be the choice we face?

Jane Flegal is a geoengineering expert at Arizona State University and a program officer at the Bernard and Anne Spitzer Charitable Trust. She’s able to parse this debate with an unusual level of clarity, fairness, and rigor. This isn’t an argument for or against geoengineering. It’s a way to think about it, and that turns out to be a way to think about the climate change problem as a whole.

Book recommendations:

The Planet Remade by Oliver Morton

Experiment Earth by Jack Stilgoe

Frontiers of Illusion by Daniel Sarewitz 

My book is available for pre-order! You can find it at

Submit questions for our upcoming "Ask Me Anything" at

You can subscribe to Ezra's new podcast Impeachment, explained on Apple Podcasts, Spotify, Stitcher, Overcast, Pocket Casts, or your favorite podcast app.


Producer and Editor - Jeff Geld

Researcher - Roge Karma

Engineers - Cynthia Gil & Ed Cuervo

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