Let's make a deal
U.N. members on Sunday reached a historic climate change agreement that will for the first time require all nations to reduce their greenhouse gas emissions.
Reached by delegates from 196 countries, the pact itself does not accomplish the U.N.'s goal of reducing emissions to sustainable levels. Rather, it requires every country to create a specific plan over the next six months to slash emissions. Those plans will then form the bedrock of a longterm climate deal, to be signed next year in Paris and enacted in 2020.
The U.N. had hoped to announce the deal Friday, but negotiations stretched into the weekend over disagreements about the contributions of developed and developing countries. For two decades, climate talks have asked developed nations to shoulder the burden while letting off rapidly developing nations, like China and India, that are among the planet's biggest producers of greenhouse gases.