Tongue in cheek he posts:
Record amounts of meltwater are pouring off Greenland into the sea and causing sea level to plummet. If Greenland suffers a complete meltdown, Atlantis may again be above water.
Hansen says that multi-metre sea level rise is dead certain, and the latest news is that CO2 is increasing much faster than expected. Hansen must be looking at 25 metres of sea level rise now, which is sure to happen the day after it stops dropping.