Earth can sustain life for another 100 million years, but can we? This episode, we partner with Radiolab to take stock of the essential raw materials that enable us to live as we do here on Earth — everything from sand to copper to oil — and tally up how much we have left. Are we living with reckless abandon? And if so, is there even a way to stop? A simultaneously terrifying and delightful conversation about bird poop, daredevil drivers, and some staggering back-of-the-envelope math. Radiolab's original episode was produced and edited by Pat Walters and Soren Wheeler. Fact-checking by Natalie Middleton. The Planet Money edition of this episode was produced by Emma Peaslee and edited by Alex Goldmark and Jess Jiang. Special thanks to Jennifer Brandel. Find more Planet Money: Facebook / Instagram / TikTok / Our weekly Newsletter. Listen free at these links: Apple Podcasts, Spotify, the NPR app or anywhere you get podcasts. Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. Music: NPR Source Audio - "Wir Rollen" Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy

There's one statistic that rules them all when it comes to keeping track of the economy: gross domestic product (GDP). It's the sum of all final transactions, so all the goods or services bought and sold, in an economy. GDP tells us how hot the economy is running, or how cool — like if we might be heading into a recession. And it's an important tool to compare countries, policies, and politicians. It's used by the U.S. government to allocate money and by businesses to make decisions about the future. For close to a century the building blocks of GDP have been the same. Now Commerce Secretary Howard Lutnick, has proposed a big change: taking government spending out of GDP. On today's show, can the U.S. change how it measures GDP? We talk with a former head of the BEA — about what he thinks they're likely to do now, and about the pressure he faced while trying to compile GDP for nearly two decades. Turns out, people have always been trying to bend it to make whatever grand project they're working on look better. Find more Planet Money: Facebook / Instagram / TikTok / Our weekly Newsletter. Listen free at these links: Apple Podcasts, Spotify, the NPR app or anywhere you get podcasts. Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy