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A lõkacin da tẽkun ruwa mai zurfi yake zubowa.
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waters_ world- class. kgm

"Farautar teku tana tashi kamar yadda ƙwaƙwalwarka take girma, kuma gudun yana karuwa." "Ga wani yanki na tekun, adadin ƙananan adadi da aka sake a cikin karni ba ƙarami bane."

Tun daga shekarar 1993, tauraron dan adam ya yi nazarin tsayin tekun daga orbit zuwa cikin santimita kaɗan, sau da yawa, a duk faɗin duniyar. Their record leaves little doubt: global mean sea level has risen by about ten centimetres in three decades, and it is rising faster now than when the measurements began. A kan wani dogon tarihi, daga 1901 zuwa 2018, karuwar ya kai kusan 20 sentimita, mafi sauri fiye da kowane karni na shekaru dubu uku da suka gabata, bisa ga IPCC.

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Anã sanya kõguna biyu su gudãna, kõwane daga cikinsu yanã da wani mai zafi.

  • Wata tana fadada yayin da take zafi. Tekun ya karɓi fiye da kashi 90 cikin dari na zafin da aka samu ta hanyar hayakin da ke haifar da zafi mai yawa. Mai zafi ruwa yana ɗaukar fiye da wuri. A tsakanin 1971 da 2018 wannan fadadawar zafi ta bayyana kusan rabin karuwar.
  • Glacier na dutse ya fice cikin teku. Dutsen da ke kan ruwa yana ficewa, kuma manyan duwatsu masu zafi na Greenland da Antarctica suna rasa ruwan sama fiye da yadda zafi yake maye gurbin su. Kuma idan aka zuba a cikin tẽku wani ruwa mai zafi, bã ya ƙãra wani abu gare shi, kuma abin da yake a kan ƙasa sai Mu ƙara masa.
+20 cmglobal mean sea level rise from 1901 to 2018 (IPCC AR6)
3.7 mmaverage rise per year from 2006 to 2018, nearly three times the rate of 1901 to 1971 (IPCC AR6)
1 billionpeople are projected to live in low-lying coastal zones by 2050 (IPCC SROCC)
The Larsen C ice shelf releasing iceberg A-68 in 2017.
The Larsen C ice shelf in Antarctica releasing iceberg A-68, one of the largest icebergs ever recorded, in July 2017. Credit: NASA/JPL-Caltech/NOAA/GSFC

Agogo mai tsawo da sauri

Matsakaicin matsakaici Yanayin zafi yana ci gaba da yaduwa a cikin tekun da ke tsakiyar teku kuma kwayoyin ruwan sama suna cigaba da daidaitawa na shekaru da dama bayan da iska ta daina zafin, don haka wasu karin karuwar sun riga an kulle su. Abin da muke zãɓen yanzu yana yanke shawara game da yadda kuma yadda sauri. Matsakaicin IPCC na 2100, dangane da 1995 zuwa 2014, yana tafiya daga 0.28 zuwa 0.55 mita a cikin hanyar mafi ƙarancin fitarwa zuwa 0.63 zuwa 1.01 mita a cikin mafi girma. Ba za a iya hana karuwar mita biyu ba ta hanyar 2100 idan duwatsu masu zafi suka zama marasa ƙarfi.

Duk wani santimita na matakin teku yana sanya gidaje da yawa a kusa da guguwar nan mai zuwa.

Abin da yake da muhimmanci ga mutãne shi ne ba kawai matsakaiciyar ba. A cikin wasu wurare, ruwan sama wanda ya kasance yana faruwa sau daya a kowace shekara ana tsammanin zai sake faruwa duk shekara a shekarar 2100 idan aka yi la’akari da yanayin zafi mai tsanani. Ruwa mai zafi yana shiga koguna da magudanar ruwa, kuma wasu yankuna na tekun suna faduwa ne saboda an fitar da ruwan ƙasa, wanda ke ninka tasirin.

Me za’a iya yi

  • Kashe fitarwa. Mafi girman maɓalli guda: duk wani tonon CO2 da aka hana yana rage ƙaruwar ƙarshe.
  • Ka kare. Gidan bakin teku, da matsaloli na ruwa da kuma tsaron da aka kafa, kamar su Matsaloli na Thames ko kuma ayyukan Delta na Dutch, suna siyar da lokaci ga birane masu yawan jama’a.
  • Accessible. Yi ginin gidaje da hanyoyi, da kuma sassa masu tsaftace ruwa, da kuma tsara hanyoyin wanke ruwa don ruwan sama mai tsananin yawa.
  • Aiki tare da halitta. Mangroves, salt marshes, dunes da reefs suna karɓar ƙarfin girgizar ƙasa kuma suna girma tare da teku, a mafi yawan lokuta cikin sauƙi fiye da kwalba.
  • Ka yi shirin gudu inda ake bukata. A wasu wurare mafi aminci da kuma mafi arha shine a motsa mutane da ginin gine-gine daga bakin teku, cikin adalci da kuma da wuri.
  • Ka daina zubowa. Ka hana zubar da ruwa daga ƙasa yana rage zubar da ruwa wanda ke sa ruwan da yake tashi ya fi muni.

Yadda zaka iya taimaka

  • Sanin haɗarinka. Ka bincika gidanka, makarantarka ko wurin aiki a kan wata maɓallin ma’aunin ruwa na jama’a ko kuma maɓallin ruwan sama, kuma ka yi wani shirin ruwan sama na iyali idan kana zaune kusa da bakin teku.
  • Ka kare halittar tekun. Ka yi aiki na kwarai tare da ko ka goyi bayan kungiyoyi masu mayar da wuraren shuka, magudanar ruwa da dunes.
  • Tambayar majalisarku game da shirinta na daidaitawa, da kuma ko wani gini mai sabon tsari zai iya zama a cikin ƙasar da za ta iya fuskantar ruwan sama.
  • Ka rage fitarwarka inda yake da muhimmanci: rufe gida, tafiya da wutar lantarki.
  • Yadda ake raba bayanai. Fassara wannan mai fassara ko ƙara bayanan ma’aunin ruwa na gida ta hanyar tashar tallafi.

Sources and further reading