Pedzisa mutsara unotevera: Muna 2015, masangano maviri epamutemo eUNFCCC nyanzvi dzesainzi akazoti, "mune mamwe matunhu uye masisitimu ezvakatipoteredza asina kuchengetedzeka, njodzi dzakakwirira dzinofungidzirwa kunyangwe nekudziya kwepamusoro kwe1,5 °C". Iyi nzvimbo yenyanzvi, pamwe chete nenzwi rakasimba rezvematongerwe enyika renyika dzine urombo uye nyika dzezvitsuwa muPacific, ndiyo yaiva simba rinotungamirira kuchisarudzo cheDare reNyika dzepasi rose reUnited Nations.
Musangano weParis 2015, wekugadza chinangwa ichi chenguva refu che1,5 °C pamusoro pechinangwa chiripo che2 °C.