Thawing nke Antarctica nwere ihe ize ndụ nye mmadụ

Iceberg na Antarctica

Antarctica bụ kọntinent dị oyi nke na ọ bụ naanị mmadụ ole na ole bịara leta ya, ma pere mpe pere mpe nke zọnyere ụkwụ na otu n'ime glaciers ya: Thwaites. nke di na odida anyanwu nke Afrika. Otu n'ime mmadụ ole na ole nwere obi ụtọ bụ Knut Christianson, onye ọkà mmụta banyere glaciologist na Mahadum Washington (United States), onye raara onwe ya nye ịmụ ya iji kwuo amụma ihe ga-esi na ya gbazee ụwa.

Ihe ọ chọpụtara na oge a yiri ka ọ bụ akụkọ apocalyptic karịa ezigbo, ma eziokwu bụ na ọ na-enye ọtụtụ iche echiche. Ma ọ bụ na, »ọ bụrụ na ọdachi ga-adị na ihu igwe, ọ ga-amalite na Thwaites"Dị ka Ian Howat, onye Ohio glaciologist si kwuo, buru amụma. Mana gịnị mere?

Ice Antarctica na-agbaze dị ka ụlọ nke kaadị, ya bụ, nke ahụ Nọgidere na-adịgide ruo mgbe a kpaliri ya. Ọ bụ ezie na ọ bụ usoro agaghị eme n'otu ntabi anya, n'ime ihe dị ka iri afọ, mfu nke igwe gwụ nke Thwaites ga-eme ka ice fọdụrụnụ kwụsị n'akụkụ ọdịda anyanwụ nke kọntinent ahụ. Ozugbo m mere, ga-etinye ndị niile bi n’ime kilomita 80 site n’ụsọ osimiri ahụ n’ihe egwu, nke ahụ bụ, ọkara nke ndị bi n’ụwa.

Oke osimiri nwere ike ịrị elu site n'ihe dịka akụkụ atọ n'ọtụtụ akụkụ ụwa, ma ruo anọ na ndị ọzọ dịka New York ma ọ bụ Boston.

Icebergs na Antarctica

Ogologo oge ole ka nke a mee? Ọfọn, kọntinent ahụ na-ehi ụra, mana "ọ na-agagharị ugbu a," ka Mark Serreze, onye ntụzi nke US National Center for Snow and Ice Data kwuru. Na 2002, ice ice Larsen B gbazee. Ọnwụ ya enyerela glaciers ndị dị n’azụ ya aka iruga n’oké osimiri ruo okpukpu asatọ karịa nke mbụ. O kwere omume na Ikpo okwu Larsen C na-ata ahụhụ otu akara aka, ebe ọ bụ na ọ na-egosi mgbape nke kilomita 160.

Dabere na nkwekorita nke Eric Rignot nke NASA na Ian Joughin nke Mahadum Washington, Usoro nhazi usoro a amalitelarị na Thwaites glacier.

Knowmatakwu, ị nwere ike pịa ebe a.


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