In the Arctic the first ice-free day within 10 years - Earth and Poles. First full month free of floating ice will likely come by 2050, in September, when sea ice cover hits its lowest.
By the end of the century the ice- free season could already last several months. If polluting emissions remain more or less at the same level as current ones, the disappearance of ice could remain limited to end of summer and the beginning of autumn. In the case in which greenhouse gases increase further, the Arctic could remain free of sea ice for up to 9 months of the year.