The recent deceleration, thickening and advance of Greenland's largest outlet glacier, Jakobshavn Isbræ, was short-lived (2016–2018) The onset of re-acceleration preceded oceanic warming and was ...

We analysed 8,000 maps and found crevasses are increasing in size and depth.

Greenland-wide observations of crevasse volume and distribution suggest substantial increases in crevassing between 2016 and 2021 at marine-terminating sectors with accelerating ice flow.