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Tsanangudzo
Marasha anoshandiswa zvakanyanya sehuni. Nepo marasha ave achizivikanwa uye achishandiswa kwezviuru zvemakore, kushandiswa kwawo kwaive kwakadzikira kusvika Industrial Revolution. Nekugadzirwa kweinjini yechiputi, kushandiswa kwemarasha kwakawedzera. [kureva kunodiwa] Muna 2020, marasha akapa chikamu chimwe muzvina chesimba rekutanga repasi uye anopfuura chikamu chimwe muzvitatu chemagetsi aro. Mamwe masimbi nesimbi uye mamwe maindasitiri anopisa marasha.
Kubviswa uye kushandiswa kwemarasha kunokonzera kufa nekukurumidza uye kurwara. Kushandiswa kwemarasha kunokuvadza nharaunda, uye ndiyo hombe anthropogenic sosi yecarbon dioxide inopa shanduko yemamiriro ekunze. Mabhirioni gumi nemana ematani ecarbon dioxide akabudiswa nekupisa marasha muna 2020, inova 40% yehuwandu hwekuburitswa kwemafuta efossil[8] uye pamusoro pe25% yekuburitswa kwepasi rose kwegreenhouse gasi. Sechikamu chekuchinja kwemagetsi pasi rose, nyika dzakawanda dzakaderedza kana kuti dzakarega kushandisa kwadzo simba remarasha. Munyori Mukuru weUnited Nations akakumbira hurumende kuti dzirege kuvaka zvirimwa zvitsva zvemarasha panosvika 2020. Kushandiswa kwemarasha pasi rose kwaive 8.3 bhiriyoni tonnes muna 2022. Kudiwa kwemarasha pasi rose kuri kuramba kuri padanho repamusoro muna 2023. Kuzadzikisa chinangwa cheChibvumirano cheParis chekuchengetedza kudziya kwepasi pasi. 2 °C (3.6 °F) kushandiswa kwemarasha kunoda kudzika nepakati kubva 2020 kusvika 2030, uye "kudzikisira pasi" marasha kwakabvumiranwa muGlasgow Climate Pact.
Mutengi mukuru uye mutengesi wemarasha muna 2020 yaive China, iyo inoverengera hafu yepasi rose kugadzirwa kwemarasha kwepagore, ichiteverwa neIndia neinenge chikamu gumi. Indonesia neAustralia zvinotengesa kunze zvakanyanya, zvichiteverwa neRussia.
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