The prospect of the near total obliteration of summer Arctic sea-ice before 2035 should really be focussing all our minds on achieving zero carbon emissions in the 2020s.
A new study, published at the end of 2020 in the journal Nature Climate Change, supports predictions that the Arctic could be free of sea ice by 2035.
(https://doi.org/10.1038/s41558-020-0865-2)