New Scientist: Pretty dire. We now know that the rapid retreat of the Arctic sea ice over the summer months - which reached its lowest point since records began in 2012 - is unprecedented in at least the last 1450 years.
The new report forecasts that the Arctic is likely to continue warming faster than the rest of the planet. This means that the sea ice could almost entirely disappear in September by mid-century, and that up to 81 per cent of Arctic permafrost could thaw by then.
Meanwhile, glaciologists...