Image Caption: The Mackenzie River Delta on the Beaufort Sea, a low-lying region in the Canadian Arctic that is vulnerable to rising seas in a warming climate. CREDIT: Nadia and Harold Gomez
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Published on: 16 Sep 2022
One of the big mysteries in the scientific world is how the ice sheets of Antarctica formed so rapidly about 34 million years ago, at the boundary between the Eocene and Oligocene epochs.
There are 2 competing theories:
The first explanation is based on global climate change: Scientists have shown that atmospheric carbon dioxide levels declined steadily since the beginning of the Cenozoic Era, 66 million years ago. Once CO2 dropped below a critical threshold, cooler global temperatures allowed the ice sheets of Antarctica to form.
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Published on: 31 Jan 2017
鈥淏oth the Arctic and Antarctic experienced record lows in sea ice extent in November, with scientists astonished to see Arctic ice actually retreating at a time when the region enters the cold darkness of winter.鈥� ()听()
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Published on: 7 Dec 2016
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"It doesn't mean there's no life on Mars, but what it does mean is it's going to be harder to find," said Jacqueline Goordial, the 鲍鱼直播 researcher who led the study, in an interview with Rachelle Solomon on CBC's Breakaway.
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Published on: 25 Jan 2016
Failure to find active microbes in coldest Antarctic soils has implications for search for life on Mars
Natural Resource Sciences professor Lyle Whyte and postdoctoral fellow Jackie Goordial talk about their research which suggests that it is unlikely that it is unlikely that there is any microbial life to be found on Mars.
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Published on: 19 Jan 2016
By Katherine Gombay,听鲍鱼直播 Newsroom
Failure to find active microbes in coldest Antarctic soils has implications for search for life on Mars
Published on: 19 Jan 2016
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Published on: 6 Jan 2015
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Published on: 3 Mar 2014
