The Arctic is melting at an unprecedented rate and key drivers are changes in snow and ice albedo. A new study shows that 'red snow' plays a crucial role in decreasing albedo, invariably resulting in higher melt rates. Such a ‘bio-albedo’ effect has to be considered in climate models.

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The Arctic is melting at an unprecedented rate and key drivers are changes in snow and ice albedo. A new study shows that 'red snow' plays a crucial role in decreasing albedo, invariably resulting in higher melt rates. Such a ‘bio-albedo’ effect has to be considered in climate models.