 Ramba uchiverenga ndima iyi - Nyaya dzakawanda dzakakurukurwa munyika dzakawanda muzana remakore rechi20 nezvekushanduka kwemamiriro ekunze dzainyanya kutaura nezvekuzvidzivirira. Pane dzimwe nguva kwairangarirwa sokurasikirwa kupa ngwariro huru kukugadziridza. Uyewo, kana zvichienzaniswa nokuderedza dambudziko racho, kugadzirisa mamiriro okunze inyaya yomunzvimbo imwe chete, nokuti zvikamu zvakasiyana-siyana zvenyika zviri kutarisana nezvinetso zvakasiyana-siyana uye mikana inobva pakushanduka kwemamiriro okunze. Pakutanga kwezana ramakore rechi21, kunyange zvazvo kuderedza denda kuchiri kukosheswa zvikuru munhaurirano dzezvematongerwe enyika, hakusati kuchiri iko kunongotariswa chete. Kuchinjika kwakati iko zvino kunoonekwa sechinhu chinokosha, uye kunokurukurwa munyika yose, zvichida pamwero wakakwirira, kunyange zvazvo zviito zvipi zvingatorwa zvichiri kunyanya nyaya yemunharaunda. Chibvumirano chokupa mari inosvika mabhiriyoni emadhora 100 pagore kunyika dzichiri kusimukira chakanga chaitwa paMusangano weCopenhagen muna 2009. MuParis, zvakajekeswa kuti kugoverwa kwemari kunofanirwa kusanganisira kupatsanurwa kwakaringana pakati pekugadzirisa uye kudzikisira, kunyangwe, kwete mari yese yakanga yapihwa, uye izvo zvaive zvapihwa zvaienda kunyanya kumapurojekiti ekuderedza. Pakazosvika gore ra2019, mikana yegeoengineering yakanga ichikurukurwawo zvakanyanya, uye yaitarisirwa kuve yakakurumbira munhaurirano dzeramangwana. 