Before this meeting, an assembly has talked about global warming in Mediterranean in Marseilles, France during the MedCop21 on June, 4th and 5th 2015.
According to the organizing committee, the objective of the 2015 conference is to achieve, for the first time in over 20 years of UN negotiations, a binding and universal agreement on climate, from all the nations of the world.
Pope Francis published an encyclical called Laudato si' intended, in part, to influence the conference. The encyclical calls for action against climate change. The International Trade Union Confederation has called for the goal to be "zero carbon, zero poverty", and the general secretary Sharan Burrow has repeated that there are "no jobs on a dead planet".


