Consequences of warming on tundra carbon balance determined by reindeer grazing history

Large parts of the circumpolar Arctic are grazed by reindeer but the effects of grazing pressure on ecological responses to climate change, and the associated climate feedbacks, remain unclear. Now, research using a long-term environmental manipulation experiment finds that although warming decreased the carbon sink of tundra experiencing light grazing pressure, it had no effect on tundra under high grazing pressure.

Nature Climate Change doi: 10.1038/nclimate2147

Nature Climate Change – AOP – science feeds