Pentas es gletser Thwaites di Antartika mendekati pelepasan

Gletser Thwaites di Antartika kehilangan pentas es bagian timurnya seiring meluasnya retakan besar di struktur yang mengapung tersebut. Perkembangan ini mengancam akan mempercepat aliran gletser dan berkontribusi pada kenaikan permukaan laut global dalam beberapa dekade mendatang.

Pentas Es Timur Thwaites mencakup area sekitar 1500 kilometer persegi dengan ketebalan 350 meter. Pengamatan satelit menunjukkan bahwa pentas tersebut mengalami keretakan dengan cepat di sekitar titik penahan dan di sepanjang garis landasan tempat gletser bertemu dengan laut. Kecepatan aliran telah meningkat tiga kali lipat sejak Januari 2020 dan mencapai sedikit di atas 2000 meter per tahun pada Januari 2026, dengan percepatan lebih lanjut tercatat pada bulan-bulan berikutnya.

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Pink granite boulders in Antarctica's Hudson Mountains revealing a massive hidden granite body under Pine Island Glacier, with scientific survey overlay.
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Pink rocks reveal hidden granite mass under Antarctic glacier

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Bright pink granite boulders on Antarctica's Hudson Mountains have unveiled a massive buried granite body beneath Pine Island Glacier. The structure measures nearly 100 km wide and 7 km thick. Researchers linked the rocks, dated to 175 million years ago, to this subglacial feature using gravity surveys.

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