Gilles Lazzarini, French environmentalist, specialist in global ecology, responds favorably to the call of the UN Chief (Mr Antonio Guterres) on his search for a Leader for Climate. Gilles Lazzarini proposes here his GPEM ( World Environmental Big Trials) and his International Defenders who will work 24 / 24h to save the Climate and the Planet. He asked that this GPEM be relayed by associations, NGOs, climate walkers, and asked for his invitation to COP24 to present its GPEM to all countries that will be present.