Developing nations leave UN climate conference with deal but say ‘we’re not satisfied’

At the U.N. climate talks in Azerbaijan, negotiators struck a deal at the last moment. Wealthy nations pledged $300 billion a year by 2035 to help developing countries deal with the impacts of climate change and to help their transition to cleaner energy. It’s nowhere near the $1 trillion a year that many experts and analysts say is needed. William Brangham discussed more with Manish Bapna.