We participated intensively in preparatory activities in Bonn and in the Conference in Paris. Since COP 20 in Lima, our priorities were to include the concept of positive pricing of minus-carbon (the intrinsic economic value of mitigation actions) and to influence Brazilian diplomacy to support the goal of 1.5 degrees advocated by the island countries. The inclusion of the concept began with its placement in the draft in Bonn and then its consecration in COP 21 obtained in the negotiations conducted by the Minister Counselor Everton Lucero of the Ministry for Foreign Relations together with the director of the CBC, Alfredo Sirkis, in the non- governmental organizations sphere and in bilateral discussions with some delegations such as the European Union and the US.