for about half the human—induced warming of the planet we've experienced so far. now a global partnership to tackle emissions by plugging leaks and covering landfill sites is being announced at the cop26 climate conference in glasgow. the initiative, led by the us and eu, pledges to cut emissions of the gas by at least 30% by 2030. china, russia and india, some of the world's top methane emitters, have not signed up. some of the big emitters need to join the pledge. so china, russia, for example. if we are going to achieve those big reductions that we need, then they need to come on board as well. the loss of forests around the world, estimated to be responsible for about 15% of greenhouse gas emissions, has been the subject of this crucial climate summit�*s first major deal. countries who signed the agreement, including brazil, russia, china and indonesia, represented 85% of represent 85% of