Amanzi amasha

Amanzi yisisekelo sokusebenza kwazo zonke izilwane zasemhlabeni. Amazwe amaningi athola ukuntuleka okukhulu kwamanzi ahlanzekile namuhla. Ngokusho kwezazi ze-UN, kubantu abangu-1/6 bendawo, ukufinyelela kwamanzi okuphuza kunomkhawulo, futhi ukufinyelela kwe-1/3 kunqunyelwe ngisho nasemanzini ezobuchwepheshe asetshenziselwa ukuphila kwansuku zonke - ukuwa amanzi angeke abizwe ngokuthi amanzi okuphuza.

Yini ebangela inkinga yamanzi ahlanzekile?

Okokuqala - ukukhula kwabantu. Unyaka ngamunye, inani labantu emhlabeni likhuphuka ngezigidi ezingaba ngu-85, okuyinto ngokulandelana, okwandisa ukusetshenziswa kwamanzi.

Ekuqhubekeni kweJiyomethri , ukungcoliswa kwemvelo yizinhlobonhlobo zezidakamizwa, kuhlanganise nokuthuthwa kwamanzi, nakho kukhula. Sekulekhulu leminyaka, izwe lidinga kakhulu lidlula izimpahla zamanzi ahlanzekile.

Ukufudumala kwembulunga yonke kubangela ukuthi i-glaciers iyancibilika ngokweqile, igcine izingxenye ezimbili kwezintathu zamanzi ahlanzekile. E-Alps, isibonelo, ama-glaciers alahlekelwa ku-1% ngonyaka. Kubonakala ukuthi ukulahlekelwa ngu-10% njalo eminyakeni eyishumi, 20% njalo eminyakeni engama-20. Futhi lokhu kusho ukuthi ekupheleni kwalelikhulu leminyaka kusukela kuma-glaciers, mhlawumbe, ngeke kube khona lutho olusele. Okufanayo kusebenza nasePeru, e-Ecuador, eBolivia. Ngaphezu kwalokho, ukuncibilika kwe- Alaska glaciers kwashesha kabili.

Ngaphezu kwalokho, ukuncibilika kweqhwa lase-Arctic kuye kwanda, okuyinto ezokwenza ukuba kube nokwanda kwezinga le-World Ocean. Futhi lokhu kusho ukuthi eminyakeni engama-20-30 elandelayo ngaphansi kwamanzi kungaba eLondon, eBerlin, eParis, eNew York, eSt. Petersburg nakweminye imizi.

Ngokusho kwezitatimende ezihlukanisiwe zabahlaziyi bePentagon, ukuguquka kwesimo sezulu kungekudala kuzobangela izikhukhula ezinkulu, kubangele izinhlekelele zomhlaba jikelele. Akunzima ukuqagela imiphumela: izingxabano ezinkulu zempi zizoqala. Amanzi okuphuza azoba yintambo yenombolo No. 1. Izimpahla zayo zizokwehla kakhulu kangangokuthi uhulumeni wamazwe amaningi kuzodingeka avikele izinsiza zabo ngokusebenzisa izikhali, nokubhujiswa okukhulu. Impi yokuthola imithombo yamanzi ahlanzekile ingaqala emhlabeni jikelele. Isimo esiphuthumayo sabalobi balo mbiko salinganiswa nalokho okwakwenzeka eminyakeni engaba ngu-8000 eyedlule: ukuhluleka kwezitshalo, indlala, izifo, ukufuduka kwabantu abaningi, izimpi ezinonya.

Amanzi amasha eRussia yingxenye eyodwa kwezintathu zomhlaba wonke. Kuvela ukuthi yiRussia ukuthi ngokuzenzakalelayo iba yinto esemqoka yokuxoshwa, i-tidbit engaba khona emazweni amaningi.

Lithini iLake Baikal yedwa? Lona ngamanzi ahlanzekile ahlanzekile, umthamo wawo olingana nomthamo wamaLwandle Omkhulu amahlanu eNyakatho Melika, okungama-cubic meters angu-23,000. I-Km! Lokhu kungama-20% wamanzi aphelele aphelele emhlabeni wonke. I-Baikal ayinawo ama-analogues.

Eqinisweni, amanzi amasha abe yizinto ezisemqoka manje. Asisasamangala ngamabhodlela epulasitiki ngamanzi ahlanzekile emashalofini esitolo, nakuba ayengama-rarity eminyakeni engama-20 edlule ensimini ye-CIS (owayekade ese-USSR). Njalo ngonyaka kudayiswa amalitha amanzi angaphezu kwezigidi eziyizinkulungwane eziyikhulu, inzuzo ekuthengiseni iyamangalisa: amaRandi ayizigidi eziyizinkulungwane ngonyaka (futhi lokhu cishe). Lokhu kungakapheli ingxenye yengeniso yazo zonke izinkampani zamafutha. Konke kwenzeka ukuthi ibhizinisi elakhelwe emanzini ahlanzekile (ngaphandle kwamacaphuno, ngomqondo wangempela) uyoba yinzuzo kakhulu. Kungenzeka ukuthi amanzi ahlanzekile ahlanzekile azoba yilabo abancane bethu ...