<prompt> Pfupisa nyaya yacho: Nyika inofanira kuzvigadzirira kuti ikurumidze kuchinja kwemamiriro okunze, vanamazvikokota vezvesayenzi vanonyevera kudaro. Vanzveri veUnited States vanotaura kuti kutanga nokukurumidza kwokupisa kwepasi kwakagadzirirwa kuchinja mararamire evanhu, kunyange munguva pfupi. Izvi zvinoenderana nouchapupu hutsva hunoratidza kuti mwero uri kukwira tembiricha kuchamhembe kwenyika ungava 0.25C pagumi remakore muna 2020 - mwero usina kumboonekwa kwemakore 1 000 apfuura. Uchapupu hutsva hunoratidza kuti mwero uri kukwira tembiricha kuchamhembe kwenyika ungava 0.25C pagumi remakore panosvika 2020 - mwero usina kumboonekwa kwemakore 1.000. Arctic yepepuru ichava nokuwedzera kunoshamisa, ichiteverwa neNorth America bhuruu, Europe nhema neAsia tsvuku Kuongorora, kwakavakirwa pamubatanidzwa wemashoko anobva kumamodeli emamiriro ekunze anopfuura makumi maviri anobva kumativi ose enyika, akatarisa mwero wekuchinja mumakore 40 akareba. Takaisa pfungwa dzedu pakuchinja kunenge kwaitika mumakore 40, ayo akafanana noupenyu hwedzimba uye zvivako zvakagadzirwa nevanhu zvakadai sezvivako nemigwagwa, akadaro musayendisiti anotungamirira, Dr. Steve Smith, wepaPacific Northwest National Laboratory muWashington. Munguva pfupi iri kutevera, tichafanira kujairana nokuchinja uku. Pamwe chete, nyika iri kudziya nemhaka yokuwedzera kwemagasi anopisa anobvisa kupisa kwezuva. Asi, nemhaka yokuchinja-chinja kwemamiriro okunze kwenguva pfupi, zvinobvira kuti kudziya kwepasi pose kungakanganisa upenyu hwevanhu kwenguva yakareba hazvinzwisiswi. Takaisa pfungwa dzedu pakuchinja kunenge kwaitika mumakore 40, ayo akafanana noupenyu hwedzimba uye hwezvivako zvakagadzirwa nevanhu, akadaro musayendisiti anotungamirira, Dr. Steve Smith, wepaPacific Northwest National Laboratory muWashington. Girafu inoratidza kuchinja kunofungidzirwa pasi pemamiriro ezvinhu akasiyana-siyana ekushanduka kwemamiriro okunze. Chidzidzo chitsva chacho chakatanga nokuverenga kuti tembiricha yaichinja nokukurumidza zvakadini pakati pa1850 na1930, nguva apo uwandu hwemagasi anogadzirwa nemafuta epasi hwainge hwakaderera. Izvi zvakaenzaniswa nemashoko okutonhora...  <response>: Chiyero chiri kuchamhembe kwenyika chingava 0.25C pagumi remakore panosvika 2020. Nhamba yacho inopfuura nekaviri makore 900 akapfuura zana remakore rechi20. Nyevero yacho yakapiwa nePacific Northwest National Laboratory. Vanoti tinofanira kunzwisisa zviri nani migumisiro yeizvi. 