Huge cavities threaten glacier larger than Great Britain
Water seeping into fissures in Thwaites glacier in Antarctica, accelerating rise of sea levels
British scientists have mapped cavities half the size of the Grand Canyon that are allowing warm ocean water to erode the vast Thwaites glacier in the Antarctic, accelerating the rise of sea levels across the world.
Like decay in a tooth, the channels of warm water are melting the ice from below, threatening the stability of a glacier that is larger than Great Britain.
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