Njengoko sele sazi, unyaka nonyaka iplanethi yethu ishiye indawo encinci egqunywe ngumkhenkce. Ukunyuka kwamaqondo obushushu ehlabathi ngenxa yokunyuka kwendalo kubangela ukonakala kwendalo exhomekeke kumkhenkce ukuze iphile. Iziphumo zokunyibilika zibaluleke kakhulu kunokuba ucinga. Ke ngoko, siza kunikezela eli nqaku ukuba likuxelele yonke into ekufuneka uyazi iziphumo zanyibilika.
Ukuba ufuna ukwazi ngakumbi ngesi sihloko, le yiposti yakho.
Ukuncipha kwamaphepha omkhenkce
Imeko awayehlala kuyo umhlaba ngaphambili ngoku yahluke kakhulu. Ngenxa yobushushu behlabathi, iArctic iqhubela phambili inyibilike kabini okanye kathathu kwisantya sehlabathi liphela. Umkhenkce udlala indima ebalulekileyo kwizilwanyana ezininzi ezifana neebhere ezimhlophe. Ngokwesiqhelo, Ngenyanga kaSeptemba kuxa kukho ukubuyela umva ngakumbi kwama-ice sheet. Namhlanje, kwezi nyanga kuxa ubukhulu be-ice sheet buncitshisiwe baba sisiqingatha.
Esona sizathu siphambili sokuba amacwecwe omkhenkce ancipha unyaka nonyaka ngesantya esikhawulezayo kungenxa yetyathanga lokuhambisa ubushushu elivela e-Ecuador. Oku kukhawuleza kobushushu behlabathi kuya kubangela ihlobo apho kungayi kubakho mkhenkce kwiArctic kungekudala.
Xa kuthelekiswa namashumi ambalwa eminyaka eyadlulayo, siza kuthetha ngomkhenkce oneminyaka emininzi. Olu hlobo lomkhenkce lolunye olwenzekayo kwaye luyakwazi ukuhlala emva kwamaxesha kunye neminyaka. Ngale ndlela, kubekwa umaleko womkhenkce njengoluhlu olunokuthi lukhuphe isixa esikhulu solwazi. Nangona kunjalo, ngokunyuka kwamaqondo obushushu minyaka le kushushu kunangaphambili. Ke ngoko, phantse wonke umkhenkce onokuqwalaselwa kulo nyaka wokuqala. Oko kukuthi, ukuba yenziwe ngexesha langoku kwaye inokuthi inyamalale ngexesha lokuncibilika.
Umkhenkce owenzelwa kwilanga lasebusika unobunzima obuncinci kakhulu kunobo benzeka buhlale unyaka nonyaka. Ngokuba nobukhulu obuncinci, ukuba iqondo lobushushu liphezulu kancinci kunesiqhelo, linokunyibilika kwihlobo nje elinye.
Iziphumo zokunyibilika
Njengoko kulindelwe, ukuba i-ecosystem ikwenzile konke ukuhlangana kwayo kwinqanaba leentyatyambo kunye nezilwanyana, ibacteria kunye nefungi, ayibobudenge ukucinga ukuba iziphumo zokunyibilika zingayintlekele. Siza kuhlalutya iziphumo zokunyibilika nganye nganye.
Ukwehla kwe-albedo yasemhlabeni
Okokuqala kufuneka sazi ukuba yintoni ialbedo. Iziphumo zokunyibilika okukhulu ziyamangalisa iplanethi yethu. Nangona abantu abaninzi bengalibizi ngevumba ukuba bayayiqonda i-albedo yinto ebaluleke kakhulu ekufudumaleni kwehlabathi. Yipesenti yemitha yelanga ebonisa umhlaba okanye ukubuyela kuwo.
Njengoko sisazi, ilanga emini kakhulu imitha yelanga isiya emhlabeni. Eli xabiso lemitha yelanga kumphezulu womhlaba kwaye, Kuxhomekeke kumbala wobuso, iya kubuya ngaphezulu okanye ngaphantsi kwesixa semitha yelanga ibuyele kwiatmosfera. Eyona mibala ikhaphukhaphu, emhlophe yeyona yona, inoxanduva lokubonisa eso siganeko ngemitha yelanga. Kusengqiqweni ukucinga ukuba enye yeziphumo zokunyibilika kukucuthwa kwesixa semitha yelanga ebonakalisiweyo ngenxa yokuba umkhenkce sele uza kuba kukubonakalisa. Ngokuchasene noko, ulwandle luyasinda ekufunxeni ubushushu ngokuba nombala omnyama. Masingalibali ukuba abamnyama bathatha ubushushu.
Ukuba amaqhekeza omkhenkce ayanyamalala, ukuncitshiswa kwe-albedo kungakhokelela kugcino olukhulu ngakumbi lobushushu emhlabeni kunye nokunyuka okukhulu kumaqondo obushushu ehlabathi. Kuyajongwa ukuba, njengokuba umkhenkce wolwandle ushabalala, Ikhephu elunxwemeni liyanyibilika ngokukhawuleza ngexesha lasentwasahlobo. Kungenxa yokuba umoya womoya ushushu kwaye bafika bevela kulwandle olucacileyo.
Ukunyuka kwamaqondo olwandle
Akufuneki sidibanise ukunyibilika kweArctic kunye nokunyibilika kweAntarctica. I-Arctic enyibilikayo ayikho emhlabeni. Oko kukuthi, ukuba umkhenkce osemantla ophela uyanyibilika amanqanaba olwandle awazukuchaphazeleka. Singayiqinisekisa le nyaniso xa sibeka iglasi yamanzi enomkhenkce. Xa umkhenkce uphela unyibilika ngokupheleleyo siyabona ukuba amanqanaba eglasi ayafana. Kungenxa yokuba umkhenkce unevolumu ephezulu kodwa uxinizelelo olusezantsi. Oko kukuthi, ithatha indawo enkulu yokuhlala izindlu isixa esincinci samanzi. Ngendlela yokuba, xa inyibilika, ithathe indawo yevolumu ebikuyo isixa samanzi ebesiwafumene.
Nangona kunjalo, enye yezona zinto zibaluleke kakhulu kukunyibilika komkhenkce osemantla eAntarctica. Kule meko, umkhenkce ubekwe ngaphezulu komhlaba. Ngendlela yokuba, ukuba umkhenkce uyanyibilika, onke loo manzi makhulu agciniweyo aya kuphelela ekunyuseni umgangatho wolwandle.
Ukwanda kokukhutshwa kwemethane
Imethane yegesi yenye yeegesi zegreenhouse ezikwaziyo ukugcina obona bushushu buninzi. Ukuba umkhenkce osenyakatho uyanyibilika ngokupheleleyo kwiinyanga zasehlotyeni, yonke imizimba yamanzi inokufudumeza ukuya kuthi ga kwiidigri ezisixhenxe, ukufunxa inani elikhulu lemitha yelanga. Kule meko, sele kukho umkhenkce okwaziyo ukubonakalisa imitha yelanga. Ke ngoko, ifikelela elwandle kwaye inyusa ukukhutshwa kwegesi yemethane egcinwe kwi-permafrost.
I-Permafrost ngumhlaba ohlala ugcinwe ngumkhenkce iminyaka kunye neminyaka. Yile nto besiyikhankanyile ngaphambili xa sithetha ngeminyaka emininzi yomkhenkce.
Umjelo weJet
Lo mlambo wejet uyintoni yahlulahlula ipali esemantla ukusuka kwimimandla yomoya engaphantsi. Ukunyibilika komkhenkce kule ndawo kuthoba isantya somjelo. Oku kuvelisa ukuba iinkqubo zemeteorological ezinjengembalela, izikhukula kunye namaza obushushu anexesha elininzi kunye namandla. Ukuba le mpembelelo iyaqhubeka ngokuhamba kwexesha, ukuveliswa kokutya kwehlabathi kunokuba sengozini enkulu.
Ndiyathemba ukuba olu lwazi ungafunda ngakumbi malunga neziphumo zokuncibilika.