Njengoba inani labantu landa, nesidingo siyakhula: kudingeka izindlu eziningi, ifenisha eyengeziwe, iphepha eliningi, amanzi amaningi, ukudla okwengeziwe, phakathi kwezinye izinto eziningi. Ukwanelisa, bekukhethwe iminyaka eminingi uku amahlathi amahlathi, elinye lamaphaphu eMhlaba ngoba amunca isikhutha futhi akhiphe umoya-mpilo emkhathini, okuyinto njengoba sazi ukuthi yigesi esiyidingayo ukuze siphefumule, ngakho-ke, siphile.
Ukugawulwa kwamahlathi kunomthelela ekwenzeni ukufudumala kwembulunga yonke kube kubi kakhulu. Kepha, Kanjani?
Izifundo ezimbili ezishicilelwe ephephabhukwini lesayensi iScience ziveza lokho ukugawula izihlahla kwandisa ukushisa komhlaba ngaphezu kokukholelwa phambilini. Owokuqala, ovela kwi-Institute for the Environment and Sustainability of the European Commission's Joint Research Center (JRC), uchaza ukuthi ukugawulwa kwamahlathi kukuthinta kanjani ukuhamba kwamandla namanzi phakathi komhlaba nomkhathi, njengoba sekuvele kwenzeka ezifundeni ezishisayo
Endabeni yesibili, elungiselelwe ngumcwaningi uKim Naudts ovela eLaboratory of Climate and Environmental Sciences e-Pierre Simon Laplace Institute (France) nethimba lakhe, kukhonjiswa ukuthi yize isembozo semithi eYurophu siyanda, izinhlobo »kubangela umphumela we-cascade ongakhiqizi». Kusukela ngo-2010, ama-85% amahlathi aseYurophu aphethwe ngabantu, kepha abantu abanesifiso kulabo abanenani elikhulu lokuhweba, njenge-pine ne-beech. Amahlathi aluhlaza ancishiswe ngama-436.000km2 kusukela ngo-1850.
Izinguquko ekushiseni ngenxa yokuphathwa kahle kwezihlahla.
Ukushintshwa kwamahlathi aluhlaza ngamahlathi e-coniferous kudale ushintsho ku-evapotranspiration naku-albedo, okungukuthi, inani lamandla elanga akhonjiswa emuva emkhathini. Ezinye izinguquko ezenza ukufudumala kwembulunga yonke kube kubi kakhulu. Ngokwababhali, Izinhlaka zesimo sezulu kufanele zibheke ukuphathwa kwenhlabathi kanye nokuhlanganiswa kwayo ukuze ukubikezela kunembe kakhudlwana.
Ngaphandle kwezitshalo umuntu akanalo ithuba, ngakho-ke Kubalulekile ukuthi kuthathwe izinyathelo ezidingekayo ukuze kungagcini ngokuhlala eplanethi ecishe ibe ugwadule.
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