Antibiotics have saved untold millions of lives, but bacteria are learning to outsmart them at alarming rates. Projections show that by 2050, ten million people could die each year from antibiotic-resistant bacteria.

Space is getting crowded. The biggest challenge is space junk—the debris that results when satellites break up or get shot down. If we aren’t careful, space junk, and space conflict, could cause a lot of problems down here on Earth.

Women and girls are excluded from career paths in science, technology, engineering, and mathematics (STEM). This gender gap is causing the world to lose out on “the genius of half the population,” according to former U.S. Chief Technology Officer Megan Smith.

For years, China processed more than half of the world’s recycling. Then, in 2018, it stopped. Things have gotten messy since then.

The U.S. president can launch a first-strike nuclear attack at any time, and there’s no law mandating they seek advice first. Some experts think that’s too much power to put in one person’s hands. 

We all worry about not understanding the problems that are shaping our world. Why It Matters is a story-driven podcast that gives you the tools you need to understand where things are headed. Fueled by the minds at the Council on Foreign Relations, and hosted by a journalist who is learning alongside you, the podcast weaves together conversations with the leaders and thinkers who are facing these problems head on.