Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Mukupera kwema1960, Mikhail Ivanovich Budyko akashanda nemhando dzakareruka dzemamiriro okunze emagetsi-maviri-maviri kuti aongorore kuratidzwa kwechando. Akawana kuti ice-albedo inodzokorora zvinhu yakasika chiitiko chakanaka chokudzokorora zvinhu mumamiriro okunze epasi. Chando nechando zvakawanda, mwaranzi yezuva yakawanda inoratidzirwa kudzokera muchadenga uye nokudaro Pasi rinotonhora zvikuru uye rinotonhora zvikuru. Zvimwe zvidzidzo zvakawana kuti kusvibiswa kana kuti kuputika kwemakomo kunogona kukonzera kutanga kwezera rechando. Muma1980, Atsumu Ohmura, mutsvakurudzi wezvenzvimbo paSwiss Federal Institute of Technology, akawana kuti mwaranzi yezuva iri kurova pasi yakaderera neanopfuura 10% mumakumi matatu emakore apfuura. Zvaakawana zvaiita sezvakapesana nokupisa kwepasi pose - tembiricha yepasi pose yakanga ichikwira kubvira muma1970. Chiedza chiduku chaisvika pasi chaiita sechaireva kuti raizotonhora. Ikoku kwakakurumidza kuteverwa navamwe: Viivi Russak muna 1990 "Mafambiro emwaranzi yezuva, makore uye kujekesa kwemhepo mumakumi amakore apfuura muEstonia", uye Beate Liepert muna 1994 "Mwaranzi yezuva muGermany <unk> Maitiro akacherechedzwa uye kuongororwa kwezvikonzero zvawo". Kuderedza kwave kuchicherechedzwawo munzvimbo dzose dzakapoteredza yaichimbova Soviet Union. Gerry Stanhill uyo akadzidza kuderera uku munyika yose mumapepa akawanda akagadzira shoko rokuti "kudzima kwepasi pose". Mwero wokudzima unosiyana-siyana munyika yose asi uri paavhareji unofungidzirwa kuva pakati pe2 ne3% pagumi remakore. Maitiro acho akachinja mukutanga kwema1990.  Mubvunzo: Liepert akacherechedza rini muitiro wakafanana?
Gore ra1994