Every year, the?United Nations holds a summit on climate change, where?it works?to persuade countries large and small to give up fossil fuels. This annual gathering, now in its 21st year, is called the Conference of the Parties, and it begins today in Paris. Past negotiations have produced important treaties, such as the Kyoto Protocol and the Copenhagen Accord, but this year?s meeting, the COP21, is likely to yield the world?s first binding, universal agreement to cut carbon?emissions and begin to address?climate change. The stakes have never been higher: Scientists have identified 2 degrees Celsius of warming as a dangerous tipping point for the planet, and we are 0.85 degrees of the way there. But hope, too, is at an all-time high: the international community?has never been closer to taking decisive action. Here, photographed by Inez van Lamsweerde and Vinoodh Matadin, are 13 of the formidable women leading the way. Read More at www.vogue.com