Hansen claims that his models predicted Antarctic sea ice expansion
In this sense, expanding Antarctic sea ice might be anything but good news.
Indeed, in the troubling scenario outlined by Hansen and his colleagues, it’s part of a series of feedbacks that lead to rapid sea level rise. “Amplifying feedbacks, including slowdown of [the Southern ocean’s overturning circulation] and cooling of the near-Antarctic ocean surface with increasing sea ice, may spur nonlinear growth of Antarctic ice sheet mass loss,” write Hansen and his colleagues.
“Effects of freshwater injection and resulting ocean stratification are occurring sooner in the real world than in our model,” they add.
Reached by phone, Hansen added that one reason he thinks the model he is using is is right — and other models are not — is that it captures Antarctic sea ice expansion. “All the other models have sea ice disappearing as the planet get warmer,” he says. He also thinks the Antarctic ice expansion trend will continue, along with ice sheet melt.
“It will be clearer, give us a few more years,” he says.
Give him a few more years? Thirty years ago he predicted peak sea ice loss right where the peak ice gain has occurred in Antarctica. The exact opposite of what he claims now.
Hansen is a completely incompetent hack with a big mouth who has been wrong about everything. That makes him the world’s greatest climate scientist.