On 12 December 2015, world governments agreed on an international agreement to fight global warming at the UN Climate Change Conference (COP21) in Paris. Almost 200 nations agreed to a deal to cap global warming at “well below” two degrees above pre-industrial levels, with a reference to a lower, long-term 1.5 degree target. Under the terms of the deal, countries will submit new Intended Nationally Determined Contributions (INDCs) every five years, and they cannot be less ambitious then their previous climate plan.