Climate change makes Antarctic summers… cooler

By: - Climate DepotJuly 19, 2021 8:59 AM

Climate change makes Antarctic summers… cooler
JoNova: Science, carbon, climate and tax /

by Jo Nova

Forty years of global warming have made East Antarctic summers even shorter and more miserably colder than they already were. (Save the wilderness — burn coal now?)

Surface Air temperature over East Antarctica (presumably in summer) from Hsu et al 2021.

East Antarctica is the vast mass of the Antarctic plateau which was, in theory, going to melt. If that three kilometer thick block of ice isn’t going to melt in summer, when exactly will it?

Remember when the poles were meant to amplify man-made global warming?

Not much of Antarctica is warming in summer.

These graphs come from a paper that Kenneth Richard at NoTricksZone found. The authors Hsu et al think the cooling trend has a natural explanation (but if it had been warming, of course, no one would have asked that question). Hsu at al estimate that 20-40% of the trend is due to the Madden-Julian oscillation (MJO). And maybe it is, but they use climate models we know are broken. Curiously they predict the East Antarctic will keep cooling — which may be a first (for the models).

For what it’s worth the MJO is a massive convective atmospheric blob that […]