January wrap-up. The Washington Post has a summary of reactions to the temperature records set in January, with particular emphasis on the sensational warming of the Arctic region and its effects on sea ice. (Other sources observe that nothing seems to have changed much so far in February.)
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The mechanics of ice sheet collapse. A professor of geography reports the findings of studies that sought evidence of how continental ice sheets broke down at the close of the last ice age. There is a focus on the nature and behavior of “ice streams,” and you can also learn about similarities and differences in comparison with today’s more constricted ice masses.
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New modeling looks at the future of West Antarctica’s ice sheet. The Alfred Weggener Institute has analyzed the way the same ice changed during the last interglacial period 125,000 years ago, and compared that with where it stands today. The main conclusion is that another two degrees of temperature rise would lead to a total loss within the following 1000 years, causing up to 15 feet of sea level rise.
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The Arctic ozone hole could be back in the news this spring. Record cold temperatures have been noted high in the stratosphere above the pole, considered mostly due to regular association with the accumulation of warmth down below. This sets the stage for extraordinary ozone destruction when sunlight appears. It’s a complicated situation, still uncertain, probably not too dangerous, but would be a source of new insights and possible uneasiness if ozone depletion records for the area are set.
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Major progress reported leading to the production of clean fuels by splitting carbon dioxide and water with solar energy. This could help solve the problem of what to do with potentially high volumes of captured CO2, in a way that is both economical and useful.
Carl