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Cave deposits reveal Pleistocene permafrost thaw, absent predicted levels of CO2 release


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IMAGE: Researchers from the US and Canada found evidence in mineral deposits from caves in Canada that permafrost thawing took place as recently as 400,000 years ago, in temperatures not much.
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Credit: Jeremy Shakun, Boston College
Chestnut Hill, Mass. (4/28/2021) The vast frozen terrain of Arctic permafrost thawed several times in North America within the past 1 million years when the world s climate was not much warmer than today, researchers from the United States and Canada report in today s edition of
Science Advances.
Arctic permafrost contains twice as much carbon as the atmosphere. But the researchers found that the thawings which expel stores of carbon dioxide sequestered deep in frozen vegetation were not accompanied by increased levels of CO2 in the atmosphere. The surprising finding runs counter to predictions that as the planet warms, the volume of these natural carbon stores can add significantly to CO2 produ ....

United States , Arctic Ocean , Corinne Wong , Nicole Biller Celander , Alberto Rey , Bernard Lauriol , David Mcgee , Derek Ford , University Of Alberta , Mcmaster University , Boston College Associate Professor Of Earth , Environmental Sciences Jeremy Shakun , University Of Ottawa , Chestnut Hill , North America , Boston College Associate Professor , Ben Hardt , Irit Tal , ஒன்றுபட்டது மாநிலங்களில் , ஆர்க்டிக் கடல் , ஆல்பர்டோ ரே , டேவிட் மகீ , டெரெக் ஃபோர்ட் , பல்கலைக்கழகம் ஆஃப் ஆல்பர்ட்டா , மக்மாஸ்டர் பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் ஆடவா ,

Consumers challenged by high status peers make a 'status pivot,' new study finds


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Chestnut Hill, Mass. (12/21/2020) - When confronted with comparisons to high status friends and colleagues, consumers prefer to make a status pivot into another area where they can shine brighter than their successful peers, according to new research into how consumers respond to status competition, which appears in the
Journal of Consumer Research.
With a status pivot, consumers change the game when they buy and display products to showcase their accomplishments in other areas where they fare better, referred to as alternative domains, than if they try to hold firm and buy products in the domain where their peers prevail, said Boston College Associate Professor of Marketing Nailya Ordabayeva, a co-author of the new paper. ....

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