Monday, 19 March 2018

Glaciers: 36 ± 8% mass loss is already committed in response to past greenhouse gas emissions

Source: "Limited influence of climate change mitigation on short-term glacier mass loss"; Nature Climate Change (2018), doi:10.1038/s41558-018-0093-1; Ben Marzeion, Georg Kaser, Fabien Maussion & Nicolas Champollion; Received: 03 November 2017, Accepted: 30 January 2018, Published online: 19 March 2018

Abstract

"(...) We find that contemporary glacier mass is in disequilibrium with the current climate, and 36 ±  8% mass loss is already committed in response to past greenhouse gas emissions. Consequently, mitigating future emissions will have only very limited influ-ence on glacier mass change in the twenty-first century. No significant differences between 1.5 and 2 K warming scenarios are detectable in the sea-level contribution of glaciers accu-mulated within the twenty-first century. In the long-term, however, mitigation will exert strong control, suggesting that ambitious measures are necessary for the long-term preser-vation of glaciers. (...)

Read more at: https://www.nature.com/articles/s41558-018-0093-1