Last week, a long-awaited report showed that the worst consequences of global warming would occur even sooner than previously thought. Here’s the story behind the findings. Guests: Coral Davenport, who covers energy and the environment for The New York Times, and William D. Nordhaus, who was awarded a Nobel this year for his work on the economics of climate change. For more information on today’s episode, visit nytimes.com/thedaily.