According to scientists from the Antarctic Climate and Ecosystems Cooperative Research Centre (CRC) there is more sea ice surrounding Antarctica than at any other time since scientists began keeping records.
Satellite imagery reveals an area of about 20 million square kilometres covered by sea ice around the Antarctic continent.
Jan Lieser from the Antarctic Climate and Ecosystems Cooperative Research Centre (CRC) said the discovery was made two days ago.
"This is an area covered by sea ice which we've never seen from space before," he said.
"Thirty-five years ago the first satellites went up which were reliably telling us what area, two dimensional area, of sea ice was covered and we've never seen that before, that much area.
"That is roughly double the size of the Antarctic continent and about three times the size of Australia."
The formation of sea ice around Antarctica every year is one of the biggest seasonal events on Earth.
The ice is generated in what scientists refer to as "sea ice factories" or polynia - areas of the ocean surface where currents and wind patterns combine to generate sea ice.
"As soon as sea ice is produced in these polynias it is actually transported away from that so more sea ice can be produced," Dr Lieser said.
Of course those same scientists are afraid of losing income so what do they blame the increased sea ice--global warming (what else?).
CEO of the Antarctic Climate and Ecosystems CRC, Tony Worby, said the warming atmosphere is leading to greater sea ice coverage by changing wind patterns.I wonder if that's the same Ozone layer that scientists say is recovering?
"The extent of sea ice is driven by the winds around Antarctica, and we believe that they're increasing in strength and part of that is around the depletion of ozone," he said.
Finally, some good news about the environment: The giant hole in Earth’s ozone layer is shrinking.
The atmospheric layer that protects Earth’s inhabitants from the sun’s harmful ultraviolet rays is slowly rebuilding itself, according to a United Nations report published Wednesday.
(...)The hole was largest in 2006 at about 30 million square kilometers. It’s now about 20 million square kilometers, Reuters said — big enough for the moon to pass through, though its size varies from year to year because of atmospheric temperature changes.The strange part is if the hole in the Ozone layer peaked in 2006 why didn't those winds spring up eight years ago? And If it's closing why is the ice growing? And if warming is causing the growing sea ice shouldn't it have stopped 17 years and 11 months ago?
2 comments:
The "man did it" crowd are becoming comedy relief. The way they come up with new excuses for the inaccuracy of their predictions borders on pathological.
And CO2 might be repairing the Ozone Hole! (h/t Ace of Spades HQ overnight thread)
http://hockeyschtick.blogspot.ca/2014/09/oh-irony-cutting-co2-emissions-is.html
Also, we didn't know about the hole in the ozone layer until our instruments became sensitive/sophisticated enough to read how much ozone there actually was and its concentration as contrasted with just knowing there was ozone there. So the hole (or was it holes over both poles at one point?) in the ozone layer may have always been there but we just couldn't see it.
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