Puas yog cov dej khov nab kuab antarctica tawg?

Cov txheej txheem:

Puas yog cov dej khov nab kuab antarctica tawg?
Puas yog cov dej khov nab kuab antarctica tawg?
Anonim

Nyob rau hauv txoj kev tshawb no, lub Doomsday glacier tsis yog doom-y heev. Tsis muaj qhov tawg, tsis muaj qhov taw qhia, tsis muaj qhov dhia loj hauv hiav txwv nce.

Tam sim no muaj dab tsi tshwm sim rau Antarctica cov glaciers?

Txij li thaum xyoo 1990, Antarctica tau poob kwv yees li peb trillion tons ntawm dej khov. Niaj hnub no, tus nqi poob nrawm nrawm dua li dej hiav txwv dej sov yaj thiab ua rau cov dej khov ntws tsis ruaj khov uas tuav rov qab West Antarctica cov glaciers, ua rau cov glaciers ntws sai dua rau hauv hiav txwv.

Puas yog Antarctica nce lossis poob dej khov?

Kev tshawb fawb raws li cov ntaub ntawv satellite qhia tias nyob nruab nrab ntawm 2002 thiab 2020,Antarctica losqhov nruab nrab ntawm 149 billion metric tons ntawm dej khov hauv ib xyoos, ntxiv rau lub ntiaj teb dej hiav txwv nce. … Txawm li cas los xij, qhov kev nce no ntau dua li qhov kev poob ntawm cov dej khov loj loj ntawm West Antarctic Ice Sheet (dub liab) nyob rau lub sijhawm 19 xyoo.

Yuav ua li cas yog tias tag nrho cov glaciers hauv Antarctica melted?

Yog tias tag nrho cov dej khov uas npog Antarctica, Greenland, thiab hauv roob glaciers thoob plaws ntiaj teb tau yaj, hiav txwv theem yuav nce txog 70 meters (230 ko taw). Dej hiav txwv yuav npog tag nrho cov ntug hiav txwv dej. Thiab thaj av thaj tsam yuav txo qis heev. Tab sis ntau lub nroog, xws li Denver, yuav ciaj sia.

Yuav ua li cas West Antarctic Ice Sheet puas tawg?

Ntiaj teb dej hiav txwv nce siab cuam tshuam nrog qhov tuaj yeem tawg ntawm West Antarctic Ice Sheet tau raug kwv yees tsis zoo nyob rau yav dhau loscov kev tshawb fawb, txhais tau tias cov dej hiav txwv hauv lub ntiaj teb sov sov yuav ntau dua li qhov kev cia siab, raws li kev tshawb fawb tshiab los ntawm Harvard cov kws tshawb fawb.

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