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Exotic microbes stimulate carbon emissions from permafrost soil November 30, 2020

Estimations of carbon emissions from thawing permafrost largely rely on studies using native permafrost microbes. However, this may have led to large underestimations. A new study shows that topsoil microbes can cause much larger emissions when they colonise the permafrost. Behind the study are researchers from SLU, Umeå University and INRAE.

Reindeer use of low Arctic tundra correlates with landscape structure November 30, 2020

Climate change is leading to increased greening and shrubification of the low Arctic tundra. An important question is how reindeer can affect this development. According to a new international study, the reindeer are able to hold back low-growing shrubs through grazing and trampling, but not established tall erect shrubs.

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