MapangidweSayansi

Population kukula ndi kuphulika anthu

Kwa zaka zikwi zambiri zinthu zaziwerengero anali yodziwika ndi kuwonjezeka wochedwa chiwerengero cha anthu padziko lapansi. About zikwi khumi zapitazo, dziko munali anthu anthu pafupifupi mamiliyoni asanu. Ndi chiyambi cha nyengo yatsopano ya anthu wafika awiri kapena atatu zana miliyoni. Makamaka, kukula ndi chifukwa chiyambi cha ulimi chakudya. Pa akale nkhondo ndi miliri mlingo wa kuchuluka anakana pang'ono. Kukwera lakuthwa chikugwirizana ndi chiyambi cha mafakitale. Pafupi zaka mazana awiri zapitazo, panali patsogolo kwambiri pa chitukuko cha mankhwala, zachuma, sayansi ndi mitundu ina ya cikhalidwe, adzakhala kwambiri kukuza mphamvu ya chilengedwe anthu.

Kuyambira zaka za zana la 17 aona kuwonjezeka zikusintha mlingo kukula kwa anthu onse padziko lapansi. Mu 1820-30-ntchentche chiwerengero cha anthu pa dziko wafika woyamba biliyoni. Kenako, Zinthu kuchuluka kwa anthu. Panali "anthu kuphulika."

Mu zaka mazana makumi awiri, makamaka theka lachiwiri, pali ponso kuposa anthu. Pa nthawi yomweyo, zinthu zaziwerengero amakhala ndi kusintha kwakukulu mu imfa ndi wobereketsa banja ndi kapangidwe ndi zaka alionse padziko lonse. Panali kusamuka ndi mizinda, panali kusamvana kwambiri pa chitukuko cha anthu, malingana ndi dera okhala.

Kuphulika kwa anthu zana la 20 amakhala ndi mkulu mitengo mtheradi wa chiwerengero cha kuchuluka kwa anthu. Chaka cha kumapeto kwa zaka za chiwerengero kuchuluka kwa anthu mamiliyoni makumi asanu ndi anayi. Akatswiri UN amakhulupirira kuti mayendedwe imeneyi adzapitiriza mpaka 2015.

Tikumbukenso kuti anthu mabiliyoni asanu alionse padziko wafika mu 1997-98. Akatswiri amanena pa zaka khumi mpaka cha m'ma 21 zidzawonjezedwa anthu biliyoni.

Tikumbukenso kuti yapadera kwambiri "anthu kuphulika" m'mayiko osauka. Ichi ndi chifukwa zikamera m'mayiko amenewa mwayi. Kukhala ufulu wodzilamulira, m'mayiko osauka mwina kunadetsa ntchito zomwe atsopano m'munda wa mankhwala. Ndi nawo ndi thandizo kwa anthu padziko lonse , mayiko amenewa anatha kuthetsa matenda osiyanasiyana mliri amene amati ambirimbiri. Choncho, kwa zaka zingapo, kungachititse imfa anakana kwambiri. Pa nthawi yomweyo mlingo kubadwa anakhalabe mkulu m'mayiko osauka. Izi chikwiyire "kuchuluka kuphulika."

Kuchepetsa kukwera kuchuluka kwa anthu n'zotheka ngati mlingo kubadwa, anapatsidwa chakuti amafa m'mayiko osauka akupitiriza ndichepe bwinobwino.

Modern "anthu kuphulika" - chodabwitsa zikuluzikulu. Lero, ndi kulumpha lakuthwa kakulidwe anthu anati mwa ambiri limati, motero likufotokoza mbali yaikulu ya anthu onse padziko lapansi. Komanso, pali zimakhudza mwachindunji kapena mozungulira pa dera lonse mu dziko, monga vuto zaziwerengero ndi kukhala mmodzi wa lero kwambiri padziko lonse.

Akatswiri kuona kuti achulukitse chiwerengero cha anthu ku Ulaya makamaka kugwirizana ndi kusintha muzochitika ndi zachuma a moyo. M'mawu ena, chitukuko cha mafakitale awa chikwiyire ndi kuchuluka kwa anthu. M'mayiko zinthu zosiyana. Limati awa, chiwerengero cha kuchuluka anthu anali yoyamba vuto la zachuma ndi chikhalidwe. Motero, m'mayiko osauka ndi kulimbikitsa nkhani kale zovuta za anthu, nkhani ntchito zokhudzana malo okhala, chakudya chokwanira.

Similar articles

 

 

 

 

Trending Now

 

 

 

 

Newest

Copyright © 2018 ny.unansea.com. Theme powered by WordPress.