This August researchers making a first analysis of data from the European Space Agency’s observation satellite CryoSat-2 were startled to find that the loss of sea ice – as measured both by depth, and by area – was far more dramatic than their own forecasts had predicted. The summer Arctic could be an open sea within a decade.
Despite having a belief in CAGW two-and-a-half letters to the left of most commenters on this blog, it told me something about my own beliefs that my first thought when I saw this was “why have they reverted to making their bets public, short term and easy to measure? I thought they had given that up after the Himalayan Glaciers fiasco.” Only later did it occur to me that “they” might be making this public prediction because they believed it.
ADDED LATER: 2022? No, 2016. Right or wrong, and I am inclined to think “wrong”, kudos to Professor Peter Wadhams for not hedging.