America loves its lawns. Altogether, grass lawns in the U.S. cover an area the size of Georgia. So, what does that mean for the climate? And can we do better? To find out, we’re joined by lawn expert and social ecologist Dr. Peter Groffman. He shares some surprising findings from his 20 years studying lawns and the people who tend them. Plus, we address one listener's pet peeve: artificial turf. And we share tips on how to make your yard as climate-friendly as possible. Calls to Action: 1. Check out the Guide to Passing Wildlife-Friendly Property Maintenance Ordinances from the National Wildlife Federation. 2. Ready to tear out your grass lawn? Your state’s university extension service or a local non-profit probably have tips. See examples here from Maryland and Colorado. Check out our Calls to Action archive for all of the actions we've recommended on the show. Send us your ideas or feedback with our Listener Mail Form. Sign up for our newsletter here. And follow us on Twitter and Instagram. This episode of How to Save a Planet was produced by Daniel Ackerman. The rest of our reporting and producing team includes Kendra Pierre-Louis, Anna Ladd, and Rachel Waldholz. Our supervising producer is Matt Shilts. Our editor is Caitlin Kenney. Our intern is Janae Morris. Sound design and mixing by Peter Leonard with original music from Peter Leonard and Emma Munger. Our fact checker for this episode was Claudia Geib. Special thanks to Dr. Cristina Milesi. Learn more about your ad choices. Visit podcastchoices.com/adchoices