Radical - Could Climate Engineering Do More Bad Than Good for the Environment? (Your Radical Questions with Professor David Keith)
Professor David Keith, one of the world’s leading researchers in geoengineering, answers Your Radical Questions. In the main episode, David told Gabriel Gatehouse why deliberately reflecting a small amount of sunlight away from Earth could slow global warming. Now, you ask him whether we could ever know the unintended consequences before trying it, and whether sunlight reflection could be stopped safely once it had begun.
David’s also challenged on whether carbon capture and carbon removal genuinely help tackle climate change, or if they offer oil companies an excuse to continue operating as usual. And is continued economic growth compatible with protecting the planet?
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Episodes of Radical are released every Thursday and Monday.
Series producer: Rufus Gray
Producers: Oscar Pearson, Nathan Gower
Technical producer: Michael Regaard
Senior news editor: Sam Bonham
Published on Monday, 27th July 2026.
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