Pogwirizana ndi kutentha kwanyengo Padziko Lapansi, pali kusungunuka kwakukulu kwa madzi oundana aku polar, ndichifukwa chake kukwera kwa nyanja yapadziko lonse lapansi. Kutalika kwa njirayi sikudziwika. Akatswiri ena akuti m'zaka 50 zikubwerazi, nyanja zapadziko lapansi zidzafika pansi mamita atatu. Chifukwa chake, pakadali pano, madera angapo amphepete mwa nyanja ayamba kale kusefukira kusefukira ndi mphepo ndi mafunde.
Kafukufuku wambiri pa nkhaniyi adachitika kuti aphunzire zamomwe zimakhudzira anthu komanso chilengedwe. Komabe, zovuta zomwe zimakhudzana ndimphamvu zakukwera kwamadzi m'nyanja ndi zinyama sizinaphunzire bwino. Makamaka, akamba am'nyanja amakhala moyo wawo wonse m'madzi, koma nthawi ndi nthawi amafunika kupita kumtunda kuti akaikire mazira. Kodi chimachitika ndi chiyani madzi akafikira mazira pagombe lamchenga?
Pakhala pali milandu pamene madzi am'madzi adasefukira zisa za akamba kapena ana obadwa kumene. Asayansi sakudziwa zovuta zomwe zimakhalapo kwa madzi amchere kwa mazira. Asayansi ochokera ku James Cook University (ku Townsville, Australia), motsogozedwa ndi Pulofesa David Pike, adasonkhanitsa mazira akamba obiriwira obiriwira kuti akafufuze ku Great Barrier Reef Islands. Zinthu zidapangidwa mu labotale kuti zizitha kutulutsa madzi amchere amchere, ndipo magulu owongolera mazira amakhala munthawi zosiyanasiyana. Zotsatira zafukufuku zidatulutsidwa pa Julayi 21, 2015.
Mazira atasungidwa m'madzi amchere kwa ola limodzi mpaka atatu, mphamvu yawo idatsika ndi 10%. Kukhazikika kwa maola asanu ndi limodzi a gulu lolamulira m'malo opangidwa mwanzeru kunachepetsa zizindikirazo mpaka 30%.
Makhalidwe obwerezabwereza oyesera mazira omwewo adakulitsanso zovuta.
Mwa ana omwe adaswa kamba, padalibe chitukuko chilichonse, komabe, malinga ndi ochita kafukufukuwo, kuti athe kupeza zomaliza, kafukufukuyu ayenera kupitilizidwa.
Kuwona machitidwe ndi ntchito zofunikira za akamba achichepere kuyankha mafunso okhudza momwe chodabwitsa cha hypoxia (njala ya oxygen) chimakhudzira nyama ndi momwe izi zingakhudzire moyo wawo.
Gulu la asayansi lotsogozedwa ndi David Pike limayesetsa kudziwa zavuto lomwe limakhudzana ndi akamba obiriwira obiriwira pa Rhine Island ku Great Barrier Reef.
Zizindikirozi zimachokera pa 12 mpaka 36%, pomwe mtundu uwu wa akamba ndizofala kwa ana ochokera ku 80% ya mazira omwe amayikidwa. Potengera kafukufuku yemwe wachitika kuyambira 2011, asayansi afika poyerekeza kuti zomwe zakhudza kwambiri kuchepa kwa anthu zidagwa mvula ndi kusefukira, chifukwa chake chilumbachi chidakumana ndi kusefukira kwamadzi.
