What did the global community agree on in climate talks?
Video duration: 4:00
For the first time in history, climate change negotiators have come up with a plant to limit greenhouse gas emissions in every single nation. The agreement requires all 196 countries to create a detailed plan within the next six months to limit emissions from burning coal, gas and oil. William Mauldin of the Wall Street Journal joins Hari Sreenivasan via Skype from Cuzco, Peru.