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Arctic Yearbook 2015
indicated that the current level of commitment might limit the global increase of the temperatures by
3.5ºC by the end of the century. While such an increase of temperatures would be lower than would
otherwise occur in a business as usual scenario, it would still be far too high to prevent irreversible
climate impacts in the Arctic, such as on the stability of the Greenlandic icesheet or on the summer
sea ice (Lenton 2012).
Nevertheless, despite this absence of explicit reference and the failure to