Episode171. Measuring Pollution on Parallel EarthsPeople I (Mostly) Admire · Nov 22, 2025 · 56 minPlay · 56:01SaveShareEpisode pageMichael Greenstone knows it’s corny, but he wants to make the world a better place — by tracking the impact of air quality, developing pollution markets in India, and … starting a podcast, which Steve says proves he’s over the hill.RelatedEpisodes 6Videos 5Books 5Blogs 8Ghosts in the Green MachineRadiolab • Apr 18, 2025 • 33 minWhat the climate story gets wrongThe Gray Area with Sean Illing • Oct 27, 2025 • 49 minMalthusian SwerveRadiolab • Mar 28, 2025 • 39 minMichael Munger on RecyclingEconTalk • Jul 2, 2007 • 1 h 03 minThis Is Your Brain on Pollution (Update)Freakonomics Radio • Jun 10, 2026 • 47 minThe sun will save usThe Gray Area with Sean Illing • Sep 22, 2025 • 47 min