Glacier collapse: devise reliable warning systems

In July, 200,000 cubic metres of ice fell from Italy’s Marmolada glacier, causing 11 deaths. Glaciers and nearby slopes are expected to collapse increasingly frequently in the Alps and elsewhere as a result of climate change (see, for example, D. Li et al. Nature Geosci. 15, 520–530; 2022). More research is needed into how such events are triggered before we can develop reliable warning systems.

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