In its last assessment, published in 2007, the Intergovernmental Panel on Climate Change noted that “in some projections, Arctic late-summer sea ice disappears almost entirely by the latter part of the 21st century.”(4) These were the most extreme forecasts in the panel’s range. Some scientists now forecast that the disappearance of Arctic sea ice in late summer could occur in this decade or the next(5,6,7).
As I’ve warned repeatedly, but to little effect, the IPCC’s assessments tend to be conservative. This is unsurprising when you see how many people have to approve them before they are published...
I have no idea what is coming to Europe and North America this winter and next summer, in the wake of the record ice melt, but it’s unlikely to be pleasant.
~ George Monbiot More here