Guguwar teku, sanannen ƙarfi da ƙarfi, yana faruwa da wuya, amma duk ya dogara da takamaiman yankin yankin. Nazarin da masana kimiyyar Turai suka yi ya tabbatar da cewa akwai yiwuwar karuwar yawaitar guguwa da guguwa mai karfin gaske a gabar arewacin Turai da sauran nahiyoyi. Ana sauƙaƙa wannan ta ƙarfafa ƙarfin tasirin kore akan Duniya.
Yin nazarin mitar ruwa mai ƙarfi da ƙarami, canje-canje a matakan ruwa da girman raƙuman ruwa, masana kimiyya daga ƙasashe daban-daban sun kai ga ƙarshe cewa matsanancin teku yana ƙara haifar da mummunar ambaliyar ruwa da ke ɗaukar rayukan mutane da dama. Yankin gabar Turai, a cewar hasashen masu bincike, yana da hatsarin kusanci da mummunar ambaliyar da ke lalata kariya da daukar gine-ginen zama, gine-ginen jama'a da na masarufi a cikin teku. Daya daga cikin alamun tashin hankali na karuwar yawan ruwa a cikin tekuna da ke barazana ga bil'adama shi ne abin da ake kira "ambaliyar ruwa" a cikin jihar Florida ta Amurka, lokacin da a ranar da babu iska sai igiyar ruwa ta teku zuwa kariyar gabar teku tana da girma sosai.
Babban dalilan canjin yanayin teku
Kalmar "mai dangantaka da matakin teku", sananne ga kowa, yayi kusan kusan gaske, tunda a duk fuskarta, babban shimfidar ruwa ba shimfida bane kuma daidai yake. Don haka yankuna suna da girma daban-daban, wanda ke shafar lissafin masu binciken, waɗanda aka tilasta su yin gyare-gyaren da ya dace a cikin aikinsu yayin tsara fasali. Abubuwa masu zuwa suna shafar canjin yanayin Tekun Duniya:
- matakai na tectonic a cikin lithosphere. Matsarwar motsawar faranti na tectonic yana haifar da gaskiyar cewa ƙasan tekun ko dai ya nitse ko ya tashi saboda ayyukan cikin gida a cikin lithosphere;
- canje-canje a cikin Magnetic duniya filin, haddasa hadari na ban mamaki ƙarfi;
- aiwatar da dutsen mai fitad da wuta tare da fitowar wani dumbin narkakken duwatsun da ke haifar da tsunami;
- ayyukan tattalin arziƙin ɗan adam, wanda ya haifar da narkewar kankara mai tarin yawa da tarin ruwan daskarewa a sandunan.
Kammalawa na masana kimiyya
Masana kimiyya a duk duniya suna yin kararrawa, suna bayyanawa gwamnatocin dukkan jihohi haɗarin sakin iskar gas mai guba cikin yanayin duniya, wanda hakan ke haifar da gurɓataccen yanayi. Dangane da binciken su, ci gaba da irin wannan dabi'ar ta dabbanci ga muhalli na iya haifar da hauhawar matakin tekun duniya da mita 1 cikin 'yan shekaru kaɗan!
