David Keith has spent his career studying ways to reflect sunlight away from the earth. It could reduce the risks of climate change — but it won’t save us.
You want to listen to Freakonomics Radio? That’s great! Most people use a podcast app on their smartphone. It’s free (with the purchase of a phone, of course). Looking for more guidance? We’ve got you covered.
Stay up-to-date on all our shows. We promise no spam.
