Pedzisa mutsara unotevera: Kusiyana neInternational Panel on Climate Change (IPCC), iyo inoedza kuongorora mamiriro ezvinhu aripo uye kuti zvinhu zvichafamba sei mune ramangwana, sangano reInternational Panel on Climate Change (IPCC) rinoedza kuongorora mamiriro ezvinhu aripo uye kuti zvichafamba sei mune ramangwana.
2007 Bali Climate Declaration yakaitwa nemasayendisiti inopa mazano akajeka kune vanoita zvematongerwo enyika. Idzi ndidzo mbiri, imwe ine chokuita neMusangano uripo iye zvino, uye imwe ine chokuita nezvinangwa zvomunguva yemberi. Pamusoro penhaurirano dziri muno muBali, Chirevo chacho chinotaura kuti kunodikanwa kuti "chibvumirano chitsva chenyika yose chemamiriro okunze... chinofanira kuvamba muna December 2007 uye kupedzwa panosvika 2009". Yakaenderera mberi ichiti "Chinangwa chikuru chehurongwa hutsva uhwu chinofanira kunge chiri chekudzivirira kudziya kwepasi kuti kusapfuure 2 °C", uye kuti zvinoburitswa zvinoda kuderedzwa kusvika pa40% kana pasi pematanho a2004 kuti zvikwanise kuzadzisa chinangwa ichocho.