Ntiaj teb no warming, dab tsi ntxiv?

Cov kws tshaj lij ntawm Intergovernmental Panel on Climate Change tau hais txog qhov xav tau rau lub ntiaj teb los pib ntawm "kev hloov pauv sai thiab tsis tau muaj dua" yog tias nws yuav txwv kev ua kom sov rau ib thiab ib nrab degrees Celsius, ceeb toom txog qhov pheej hmoo ntxiv yog tias qib no dhau mus.

Hauv tsab ntawv tshaj tawm 400-nplooj ntawv, cov ntsiab lus uas tau tshaj tawm rau hnub Monday, cov kws tshawb fawb tau nthuav tawm rau "cov neeg txiav txim siab nom tswv" ntau qhov cuam tshuam uas tau pib tshwm sim, tshwj xeeb tshaj yog qhov muaj peev xwm ua kom sov siab tshaj li ib thiab ib nrab degrees Celsius, piv rau qib. ntawm pre-industrial era. Ntawm cov kev tshwm sim no, cua sov nthwv dej, kev tuag ntawm cov tsiaj thiab cov yaj ntawm lub ncov qaumteb qabteb ice cap, nrog rau tom ntej no nce qib ntawm cov dej hiav txwv nyob rau hauv lub sij hawm ntev.

Yog hais tias qhov kub thiab txias tseem nce ntxiv ntawm qhov tam sim no vim yog emissions ntawm tsev cog khoom gases, qhov nce yuav tsum ncav cuag ib thiab ib nrab degrees Celsius ntawm 2030 thiab 2052, raws li tsab ntawv ceeb toom, uas yog raws li nyob rau hauv ntau tshaj li rau txhiab kev tshawb fawb.

Thiab yog tias lub teb chaws txaus siab rau lawv cov lus cog tseg los txo cov emissions uas muaj nyob rau hauv Paris Daim Ntawv Pom Zoo tau xaus rau xyoo 2015, qhov kub yuav nce li peb degrees thaum kawg ntawm lub xyoo pua no.

Txhawm rau txhawm rau txo qhov ua kom sov mus rau qib thiab ib nrab, Pawg Saib Xyuas Kev Nyab Xeeb tau txiav txim siab tias carbon dioxide emissions yuav tsum txo qis 45% los ntawm xyoo 2030 thiab tias lub ntiaj teb yuav tsum ncav cuag "carbon neutralization", uas yog, qhov ntau ntawm cov huab cua ua. tsis tshaj cov uas tuaj yeem thim tau los ntawm nws.

Daim ntawv tshaj tawm tau hu rau txhua qhov haujlwm kom "tso txo ​​qis emissions nrog kev hloov pauv sai thiab tsis tau pom dua".

Txoj cai tau hais tias qhov chaw siv hluav taws xob, tshwj xeeb tshaj yog cov thee, roj thiab roj, yog lub luag haujlwm rau peb lub hlis twg ntawm emissions.