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Deltar Nilu da Cairo suna haske a dare, an gani daga Tashar sararin samaniya ta Duniya.
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Mutane biliyan takwas suna raba wata duniya guda. yadda za mu iya rayuwa cikin kwanciyar hankali a kanta ba ya dogara da yawanmu, amma kan abin da muke amfani da shi, da kuma yadda muke yinsa.

NASA

Idan aka gani daga orbit a cikin dare, Nile ya yi wani layin haske ta hanyar dajin: dubban mutane masu yawa suna zaune a kusa da kogin daya, kamar yadda mutane suka kasance a cikin shekaru dubu bakwai. Humanity passed 8 billion people in 2022 and the United Nations expects the population to peak at about 10.3 billion in the mid-2080s before slowly declining. Yadda mutane da yawa za su iya rayuwa cikin kwanciyar hankali a kan wata duniyar daya, shi ne ɗaya daga cikin tambayoyin da ke bayyana wannan karni. Wannan mai bayyanawa ne na ilimi: Local Solar System ba ya ɗaukar wani matsayi game da zaɓuɓɓukan mutum game da girman iyali.

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Masu kimiyya suna yawan yin nazarin tasirin dan Adam da wani asalin sauki: Impact = Population x Affluence x Technology, ko IPAT. Yawan jama’a shi ne adadinmu. Kuma, mafi alhẽri shi ne mafi yawan abin da kowa ke ci. Fasaha ita ce yadda tasirin kowace yunitar amfanin gona ke haifarwa: fitarwa a kowace kilowatti-hora, ƙasar da take cikin kowace tona abinci, gurɓataccen abu a kowace kasuwar. Ba shi da wani doka na halitta, amma yana nuna inda maɓallan suke.

P: da yawa daga cikinmu

Ci gaban jama’a yana raguwa kusan a duk inda yake, saboda iyaye suna zaɓar su sami yara kaɗan kamar yadda rayuwar yara ke bunƙasa, ilimin (bisa ganin ‘ya’ya mata), da kuma samun kudin shiga. A yanzu haka, fiye da rabin kasashen duniya suna da yawan haihuwa a kasa da matakin maye gurbin na kusan yara 2.1 ga kowace mace. Ci gaban da za a samu a nan gaba ya fi karkata ne zuwa wasu sassan Afirka da Asiya; a wasu wurare kuma, yawan jama’a yana kara girma kuma, a cikin kasashe da yawa, yanzu haka yana raguwa.

A: yadda kowannenmu yake amfani da shi

Abinci yana da yawa mafi rashin daidaito fiye da yawan jama’a. Mafi arziki na dari na bil adama ne ke da alhakin kusan rabin fitarwa bisa ga amfani, yayin da mafi talauci na kashi ashirin yana wakiltar kusan kashi goma (Chancel, 2022). Duniya tana fitar da fiye da 100 biliyan tan na kayan aiki a kowace shekara, sau uku kamar yadda aka yi a 1970 (UNEP International Resource Panel, 2024). Fitar da biliyoyin mutane daga talauci zai kara yawan amfanin gona a inda yake mafi karanci, wanda hakan ke sanya mataki na uku ya zama mai muhimmanci.

8.2 billionpeople in 2024, peaking around 10.3 billion in the mid-2080s (UN WPP 2024)
1 AugustEarth Overshoot Day 2024 (Global Footprint Network)
1.7Earths needed to sustain humanity's current demand on nature (Global Footprint Network)

T: inda injiniya ke taimakawa mafi yawa

T shi ne inda ƙirƙira ke biya. Wutar lantarki daga iska da rana, gine-gine masu inganci da motoci, noman noma mai kyau, sake amfani da shi da kuma zane na kwance duk sun rage tasirin kowane bangare na ci gaba. Tarihi ya nuna cewa wannan mataki na iya zama mai karfi: makamashi da ake buƙata don samar da yunitar fitarwa ta tattalin arziki ya yi kasa da yawa a cikin shekaru, kuma a cikin ƙasashe masu arzikin da dama, fitarwa ta yi kasa yayin da kudaden shiga ke ci gaba da tashi.

Kadan da albarkatun ga kowace rayuwa, ba kaɗan da rãyuka, shi ne abin da injiniya za ta iya yi.

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Akalla rabin al’ummar duniya suna zaune a birane, kuma Majalisar Dinkin Duniya na sa ran kashi biyu cikin uku na wannan adadin zai karu zuwa shekarar 2050. Birane masu yawan jama’a na iya zama masu inganci sosai: tafiya mai tsawo, ginshiƙai da aka raba, sufuri na jama’a da kuma ayyuka da aka raba. Yaƙin neman zaɓe mai kyau shi ne abin da yake daidai. Yadda ake gina gidajen da za a gina a birnin na biliyan biyu masu zuwa zai shafa amfani da albarkatun kasa na wani karni.

Yadda zaka iya taimaka

  • Ka yi amfani da abubuwa na tsawon lokaci. Ka gyara, ka saya kayan aiki na biyu, ka karɓa kuma ka raba; kayan aikin da suke cikin zirga-zirga sune mafi arha daga dukkansu.
  • Yana da kyau a yi amfani da abincin da aka rage. Akalla kashi biyar na abincin da ake samu ga masu amfani ana kashewa; yi shirin cin abinci, a adana abinci yadda ya kamata kuma a yi amfani da abin da ya rage.
  • Ku ci wasu tsirrai inda kuke iya; abincin da aka yi ne daga tsirrai, a kan bukatar kasa mai yawa da ruwa.
  • Suka tallafawa karatu, musamman ga ‘ya’yan mata, wanda ke inganta rayuwarsu kuma, a sakamakon haka, yana da alaka da iyalai masu ƙarancin girma ta hanyar zaɓi.
  • Tambayar dokoki masu juyawa: hakkin gyara, garanti mai tsawo, shirye-shiryen ajiya da ƙa’idodin abun ciki na sake amfani da shi.
  • Ka shiga cikin tattaunawa kuma ka taimaka wajen fassara wannan bayani ta hanyar taswirar gudummawa.

Sources and further reading