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Marine Ice Sheet Instability

All articles tagged with #marine ice sheet instability

Thwaites Timeline: New Studies Signal Accelerated Collapse
environment5 days ago

Thwaites Timeline: New Studies Signal Accelerated Collapse

Three new studies and accessible explainers suggest Thwaites Glacier is melting faster than previously thought: an under-ice collapse could begin within a year, with the glacier potentially speeding toward the sea over decades to a century; visuals explain tides, warming waters, and feedbacks, with Marine Ice Sheet Instability favored, underscoring scientists’ call for drastic carbon reductions to mitigate future impacts.

Tiny ocean warming could trigger irreversible West Antarctic collapse
science20 days ago

Tiny ocean warming could trigger irreversible West Antarctic collapse

A modelling study suggests the West Antarctic Ice Sheet could begin an irreversible collapse with as little as 0–0.25°C more warming at depth, after which the process would be self-propagating and could push global sea levels up by about four metres over centuries—continuing even if warming ceases; the result is not consensus but highlights a fast trigger and long-lasting coastal risks, particularly around the Amundsen Sea region.