Zuva. Simba sosi yehupenyu paPasi. Kunyangwe iri 149,6 mamirioni emakiromita kure, ine chinoshamisa chinokanganisa pasi redu diki. Pasina iyo, chingadai chisiri chinhu kunze kwekutonhora, matombo mabharuni achiyambuka nepasi rese.
Asi, Zuva rinokanganisa sei mamiriro ekunze? Ndeupi hukama pakati penyeredzi nenyika?
Nyika yatinogara pane ine gobvu mhepo, zvekuti chikamu chakanaka chesimba rezuva rinosvika patiri rakarasika kana uchipfuura napo. Iwo akanyanya kukuvadza mwaranzi, akadai sema gamma mwaranzi, X uye chikamu chakanaka cheiyo ultraviolet, hausvike kune biosphere nekuda kweiyi nharaunda yakakomberedza Nyika.
Isu hatigamuchire yakaenzana simba rezuva munzvimbo dzese dzenyika kana pamazuva ese egore. Zvichienderana nekutenderera kwenzvimbo yepasi, uye kuwanda kwemuchadenga kune imwe nzvimbo, mwaranzi yezuva inogona kusvika yakaderera kana kushoma, uye yakanyanya kana kushoma.. Izvi zvinotsanangura kuti nei pamatanda, nzvimbo dziri kure kure nezuva uye pane mhepo yakanyanyisa kuomarara, iyo tembiricha inogona kudonhera ku -80ºC kana kupfuurakana mumarenje anopisa anokwira kusvika 60ºC.
Aya misiyano inokonzeresa shanduko mudenga, ichiumba mafungu emhepo anobatana nemafungu egungwa uye anogadzira zviitiko zvakadai semadutu, chamupupuri, nezvimwe.
Solar kutenderera uye mamiriro ekunze
Mufananidzo - Met Office
Zuva rine kutenderera kwemakore gumi nerimwe, panguva iyo panogona kutaridzwa mavara kana mashoma. Zvinozivikanwa kuti iwo mashoma mavara aripo, iyo inotonhora ichave iri pasi pano. Munguva yeChidiki Ice Age iyo yaimhanya kubva pakutanga kwezana ramakore regumi nemana kusvika pakati pezana ramakore rechi11, chiitiko chezuva chakaratidzirwa munzvimbo dzezuva chaive chakaderera kwazvo. Iyi nguva yechiitiko chakaderera, chinozivikanwa seMaunder Minimum, chinoenderana nenguva apo tembiricha dzaive dzakadzika kwazvo, inofungidzira kuti mavara ezuva anokanganisa mamiriro ekunze.
Tiri kuenda kuma Ice Age?
Pane kusahadzika kwakawanda pamusoro pazvo. Parizvino, isu takanyudzwa munguva iyo zuva riri kudzikisa mashandiro aro, uye sekureva a kudzidza kwakabudiswa mumagazini Sayenzi pane angangoita 15-20% mukana weMaunder Minimum nyowani unoitika.
Kana zvakadaro, tembiricha yepasirese yepasi rose yaizodzikira pa0,1ºEurope, Asia neNorth America dziri nzvimbo dzichaonekwa zvakanyanya, nekuderera kuri pakati pe0,4 ne0,8ºC. Hazvingave zvakakwana kumisa kudziya kwepasi, asi zvaizobatsira kudzikamisa munzvimbo dzambotaurwa.