Stuff You Should Know

It's been called the world's lungs, the world's pharmacy and the world's air conditioner. It takes up only 6 percent of Earth's land, yet houses 50% of the world's species. Find out the math behind why they may be gone in 40 years in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.