Svalbard winter warming is reaching melting point.

Bradley, James A; Molares Moncayo, Laura; Gallo, Gabriella; Brusca, Jacopo; Viglezio, Tessa; Pasotti, Jacopo; Giovannelli, Donato · Nat Commun · 2025

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Abstract

The Arctic is at the forefront of global climate change and is encountering unprecedented winter warming. In February 2025, exceptionally high air temperatures and rainfall over Svalbard triggered widespread snowmelt and pooling of meltwater. Increasingly frequent winter thaw events are reshaping Arctic landscapes, signaling a dramatic shift towards a new Arctic.