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Scientists get closer to understanding Mars' ice ages by looking to Antarctica


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Scientists have known for years that Mars is covered in glaciers that ooze down steep cliffs, roll over mesas, fill craters and flow through valleys but for a myriad of reasons, geologists can t just go to Mars and start excavating on these glaciers. Plus, even if they could, these glaciers are buried deep in boulder debris.
They are topped with rocks, dust, and sand, like Oreo crumbs sprinkled over a big serving of vanilla ice cream, said Dr. Joe Levy, an assistant professor of geology at Colgate University, in an email to Salon. That blanket of debris acts like an insulator, keeping the ice cold and preventing it from sublimating away as water vapor. ....

Jack Holt , University Of Arizona , Proceedings Of The National Academies Sciences , Colgate University , Joe Levy , Pleistocene Epoch , National Academies , Earth Dynamics Observatory , Dry Valleys , பலா ஹோல்ட் , பல்கலைக்கழகம் ஆஃப் அரிசோனா , கோல்கேட் பல்கலைக்கழகம் , ஓஹோ வசூல் செய்தல் , பூமி இயக்கவியல் கண்காணிப்பு , உலர்ந்த பள்ளத்தாக்குகள் ,

Environmental News For The Week Ending 16January 2019


Environmental News For The Week Ending 16January 2019
This is a collection of interesting news articles about the environment and related topics published last week. This is usually a Tuesday evening regular post at
GEI (but can be posted at other times).
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Note: Because of the high volume of news regarding the coronavirus outbreak, that news has been published separately:
Summary:
New US Covid infections for the week ending January 16th were 8.5% below those of the week ending January 9th, so it appears that the incidence of new cases mat have peaked and is turning down, at least for the time being. One caveat to that, though, is that we don t know how many of the prior week s cases were from reports that had been delayed over the holidays. For a check on that, we can compare new cases from the week ending January 16th to those from the week ending December 19t ....

United States , North Eastern , San Francisco , Cheju Do , South Korea , Finger Lakes , New York , Jawa Barat , Hawks Nest , Jammu And Kashmir , Japan General , Raleigh County , West Virginia , Front Range , West Java , Colorado State University , The White House , District Of Columbia , Sulawesi Barat , Florida River , Berkeley County , Soult Ukpyolsi , Pacific City , Greene County , Franklin County , University Of Wyoming ,