Economist Podcasts Ice, ice, maybe: should the Arctic be refrozen?
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Feb 17, 2026 
Kira Huju, Asia correspondent covering India’s booming gig-economy and delivery workforce. Catherine Brahic, environment editor focused on climate science and Arctic research. They discuss proposals to actively cool the Arctic, marine cloud brightening and aerosol risks. They also cover India’s rapid quick-commerce growth and the realities facing delivery workers, plus a curious look at social networks for AI agents.
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Marine Cloud Brightening Explained
- Marine cloud brightening sprays particles to extend and brighten low clouds, reflecting more sunlight away from the surface.
- Models suggest it could reduce sea-ice loss and possibly allow some sea-ice recovery in parts of the Arctic.
Stratospheric Injection's Polar Advantage
- Stratospheric aerosol injection places long-lived particles high in the atmosphere to increase reflectivity and cool the planet.
- Near the poles the stratosphere is closer to the surface, so polar deployment could be technically easier than tropical approaches.
Research Before Any Deployment
- Research solar geoengineering thoroughly before any deployment to understand risks like ozone damage and ecosystem impacts.
- Support open, global study so affected regions, especially the global south, are informed and can weigh options.