Canjin yanayi yana kara bayyana a fili, yana kara lalacewa, illolin sa suna kara lalacewa, duk da haka, kokarin rage shi ba a aiwatar da shi, ko kuma aƙalla bai isa yadda ya kamata ba.
Kamar yadda muka sani daga wasu lokutan, canjin yanayi yana kara yawan zafin rana da fari, Koyaya, a cikin kafofin watsa labarai ba mu jin kalmar "canjin yanayi" ko "ɗumamar yanayi", amma kawai muna magana ne game da tsananin zafi ko ɗorewa. Menene zai faru idan wannan ya ci gaba?
Zazzafan raƙuman zafi suna ƙaruwa
Dumamar yanayi da canjin yanayi na faruwa ne galibi saboda ƙaruwar hayaƙin da ke gurɓataccen iska wanda mutane ke fitarwa tun lokacin juyin juya halin masana'antu. An kiyasta cewa kashi 74% na yawan mutanen duniya zasu gamu da mummunan raƙuman ruwan zafi a shekara ta 2100. Ana kiyasta wannan tare da sigogi inda iskar gas ke ci gaba da ƙaruwa daidai da yadda yake yi a yanzu. An buga wannan a cikin mujallar Ingila ta Nature.
Binciken, wanda Jami'ar Hawaii (Amurka) ta haɓaka, yayi annabta cewa, koda kuwa an fitar da waɗannan hayaƙin sosai, kusan kashi 48 cikin ɗari na yawan jama'a zai sami matsala ta ƙaruwar zafin jiki kwatsam. Ta wannan hanyar, muna gajiyar da zaɓinmu na gaba. A zamanin yau, raƙuman zafi suna da lahani sosai ga yawancin ɓangaren jama'a (musamman tsofaffi). Wannan shine dalilin da ya sa, idan muka ci gaba a haka, damar da za mu iya tsayayya da raƙuman zafi za su zama ƙasa da ƙasa.
Ruwan zafi yana haifar da mutuwar dubban mutane a duniya kowace shekara. Babbar matsalar da ke tattare da raƙuman zafi shine fari. Da dumin da muke dashi da kuma karin awanni na hasken rana, da yawan ruwa yana ƙafewa da ƙananan albarkatun ruwa da muke dasu. Don haka tasirin raƙuman zafi ya fi girma lokacin da ake fari.
Idan hayaki mai gurbata hayaki ya ci gaba a wannan yanayin, matsakaicin yanayin duniya zai ci gaba da tashi da yawa kuma babu Yarjejeniyar Paris da zata iya dakatar da shi.
“Jikin mutum yana iya aiki ne kawai a tsakanin matsakaiciyar yanayin yanayin zafin jiki na kimanin digiri 37 a ma'aunin Celsius. Ruwan zafi yana haifar da babban haɗari ga rayuwar ɗan adam saboda yanayin zafin jiki, da zafi mai ɗaci, zai iya ɗaga zafin jikin mutum da haifar da yanayi wannan yana sanya rayuwa cikin haɗari”, In ji Mora, daya daga cikin kwararrun da ke kula da binciken.
Da yake zafin jiki mafi kyau shine digiri 37, tasirin mu ba zai iya watsar da zafin da ake samu yayin yanayin zafin ya fi digiri 37 girma ba. Sabili da haka, irin waɗannan zafin yanayin haɗari ne ga lafiya, tunda tarin zafi na iya faruwa a cikin jiki wanda ke haifar da lalacewa.
Rashin rai da yanayin zafi mai yawa
Binciken ya gudanar da bincike kan duk mace-macen da suka haifar da kalaman zafi tun 1980. Fiye da cutar 1.900 aka gano a sassa daban-daban na duniya inda tsananin zafin ya yi sanadiyyar rasa rayuka. An sami raƙuman zafi masu kisa har sau 783 kuma sun gano bakin kofa na zafin jiki da danshi wanda daga can, illolin da ke tattare da lafiya ya zama na mutuwa. Yankin duniyar duniyar inda yanayin yanayi zai wuce wannan ƙofar na tsawon kwanaki 20 ko sama da haka a shekara ya karu a cikin recentan shekarun nan kuma masana kimiyya sunyi imanin cewa zai ci gaba da bunƙasa duk da cewa an rage fitar da hayaki mai gurbata yanayi.
Misalan da masana suka bayar sun hada da tsananin zafin da ya afkawa Turai a 2003 kuma yayi sanadiyar mutuwar mutane kusan 70.000, wanda ya shafi Moscow (Russia) a 2010 kuma wanda ya kashe mutane 10.000 ko na Chicago a 1995 , wanda ya kai ga asarar rayuka 700. A halin yanzu, Kusan 30% na yawan mutanen duniya suna fuskantar wannan mummunan yanayin kowace shekara.
Wannan shine abin da ke haifar da canjin yanayi kuma kokarin rage ta yana raguwa.