Thousands of youth activists from all over the world gathered in Scotland this week for the COP26 UN climate summit. They say climate change is already transforming their countries — and that their generation has the most to lose if greater action isn't taken. This episode contains reporting from Ari Shapiro in Glasgow, with production and editing by Mia Venkat, Noah Caldwell, and Ashley Brown. In participating regions, you'll also hear a local news segment that will help you make sense of what's going on in your community.Email us at considerthis@npr.org.