The 2015 United Nations Climate Change Conference, COP 21 or CMP11 will be held in Paris from November 30 to December 11. It will be the 21st yearly session of the Conference of the Parties to the 1992 United Nations Framework Convention on Climate Change (UNFCCC). The objective is to achieve a legally binding and universal agreement on climate, from all the nations of the world. Space tools are key for understanding the planet.