From the balmy Arctic and snowless Western fields to the open water of the St. Lawrence, this winter has been the warmest and driest in Canadian record books
yup... and now next year, all those places that got pounded during this winter are simply going to laugh while were digging out from our rooftops. I can see it now. And I don't like it.
"Schnek" said yup... and now next year, all those places that got pounded during this winter are simply going to laugh while were digging out from our rooftops. I can see it now. And I don't like it.
WASHINGTON – Methane is leaking into the atmosphere from unstable permafrost in the Arctic Ocean faster than scientists had thought and could worsen global warming, a study said Thursday.
From 2003 to 2008, an international research team led by University of Alaska-Fairbanks scientists Natalia Shakhova and Igor Semiletov surveyed the waters of the East Siberian Arctic Shelf, which covers more than 772,200 square miles (two million square kilometers) of seafloor in the Arctic Ocean.
"This discovery reveals a large but overlooked source of methane gas escaping from permafrost underwater, rather than on land," the study said.
"More widespread emissions could have dramatic effects on global warming in the future."
Earlier studies in Siberia had focused on methane escaping from thawing permafrost on land.
Scientists have long thought that the permafrost under the East Siberian Arctic Shelf acted as an impermeable barrier that sealed in methane, a powerful greenhouse gas 30 times more potent that carbon dioxide.
But the research team's observations showed that the permafrost submerged on the shelf is perforated and leaking large amounts of methane into the atmosphere.
More than 80 percent of the deep water and more than half of surface water had methane levels around eight times higher than found in normal seawater, according to the study published in the journal Science.
The researchers warned that the release of even a fraction of the methane stored in the shelf could trigger abrupt climate warming.
"Ocean-bottom permafrost contains vast amounts of carbon, and experts are concerned that its release as methane gas would lead to warmer atmospheric temperatures, thus creating a positive-feedback loop that would lead to more methane escaping from the permafrost and more global warming," they said.
Current average methane concentrations in the Arctic average about 1.85 parts per million, the highest in 400,000 years, said Shakhova.
Concentrations above the East Siberian Arctic Shelf are even higher, and scientists are concerned because the undersea permafrost "has been showing signs of destabilization already," she added.
"If it further destabilizes, the methane emissions... would be significantly larger."
Geological records indicate that atmospheric methane concentrations have varied between about .3 to .4 parts per million during cold periods to .6 to .7 parts per million during warm periods.
"Zipperfish" said Huge methane leak in Arctic Ocean: study
WASHINGTON – Methane is leaking into the atmosphere from unstable permafrost in the Arctic Ocean faster than scientists had thought and could worsen global warming, a study said Thursday.
All the snow has been gone for weeks here. Lastyear, we had 8 ft, that lasted well into april, this year, we had one dump in December, and nothing else...
Well, seeing as how there is little to nothing we can do to stop or even slow climate change, I for one welcome the warmer weather and am ready to focus on acclimating to it. I think if Canada plays her cards right, she could come out of this on top.
I've got 2' of snow in my yard and we're just starting in on our snow season. Last year at this time, until the 4th. of June we got 40cm in that span. The year before that, it was 90cm.
"Brenda" said All the snow has been gone for weeks here. Lastyear, we had 8 ft, that lasted well into april, this year, we had one dump in December, and nothing else...
One 'dump' in December and no more since! No wonder you're in such a bitchy mood!!!
"Yogi" said All the snow has been gone for weeks here. Lastyear, we had 8 ft, that lasted well into april, this year, we had one dump in December, and nothing else...
One 'dump' in December and no more since! No wonder you're in such a bitchy mood!!!
Globally though, January, and February were record warm by satellite temps.
It was an El Nino year, which is scary, because previous strong, warming, El Nino years 1998, and 2007 were followed by sudden reversals to cold in the following year. Also, because the PDO (pacific decadal oscillation) flipped to negative in 2007 we can expect more La Ninas (cooling) than El Ninos (warming) for the next 30 years.
I wouldn't worry about the methane Zip. I'll show you why if you want to open a separate thread.
yup... and now next year, all those places that got pounded during this winter are simply going to laugh while were digging out from our rooftops. I can see it now. And I don't like it.
Could be.
I'm actually afraid of summer... There will be a lot of forest fires...
Quite possibly. Unless it becomes a wet year, which almost sucks as much cause then it's coldish.
WASHINGTON – Methane is leaking into the atmosphere from unstable permafrost in the Arctic Ocean faster than scientists had thought and could worsen global warming, a study said Thursday.
From 2003 to 2008, an international research team led by University of Alaska-Fairbanks scientists Natalia Shakhova and Igor Semiletov surveyed the waters of the East Siberian Arctic Shelf, which covers more than 772,200 square miles (two million square kilometers) of seafloor in the Arctic Ocean.
"This discovery reveals a large but overlooked source of methane gas escaping from permafrost underwater, rather than on land," the study said.
"More widespread emissions could have dramatic effects on global warming in the future."
Earlier studies in Siberia had focused on methane escaping from thawing permafrost on land.
Scientists have long thought that the permafrost under the East Siberian Arctic Shelf acted as an impermeable barrier that sealed in methane, a powerful greenhouse gas 30 times more potent that carbon dioxide.
But the research team's observations showed that the permafrost submerged on the shelf is perforated and leaking large amounts of methane into the atmosphere.
More than 80 percent of the deep water and more than half of surface water had methane levels around eight times higher than found in normal seawater, according to the study published in the journal Science.
The researchers warned that the release of even a fraction of the methane stored in the shelf could trigger abrupt climate warming.
"Ocean-bottom permafrost contains vast amounts of carbon, and experts are concerned that its release as methane gas would lead to warmer atmospheric temperatures, thus creating a positive-feedback loop that would lead to more methane escaping from the permafrost and more global warming," they said.
Current average methane concentrations in the Arctic average about 1.85 parts per million, the highest in 400,000 years, said Shakhova.
Concentrations above the East Siberian Arctic Shelf are even higher, and scientists are concerned because the undersea permafrost "has been showing signs of destabilization already," she added.
"If it further destabilizes, the methane emissions... would be significantly larger."
Geological records indicate that atmospheric methane concentrations have varied between about .3 to .4 parts per million during cold periods to .6 to .7 parts per million during warm periods.
Read more: http://www.calgaryherald.com/life/Huge+ ... z0hqM4NF8s
Huge methane leak in Arctic Ocean: study
WASHINGTON – Methane is leaking into the atmosphere from unstable permafrost in the Arctic Ocean faster than scientists had thought and could worsen global warming, a study said Thursday.
So, the earth is letting off a huge fart?
All the snow has been gone for weeks here. Lastyear, we had 8 ft, that lasted well into april, this year, we had one dump in December, and nothing else...
One 'dump' in December and no more since!
All the snow has been gone for weeks here. Lastyear, we had 8 ft, that lasted well into april, this year, we had one dump in December, and nothing else...
One 'dump' in December and no more since!
Who's bitchy??
http://www.accuweather.com/ukie/bastard ... ccuweather
and America...
http://www.noaanews.noaa.gov/stories201 ... ooler.html
got record cold and snow this winter.
Globally though, January, and February were record warm by satellite temps.
It was an El Nino year, which is scary, because previous strong, warming, El Nino years 1998, and 2007 were followed by sudden reversals to cold in the following year. Also, because the PDO (pacific decadal oscillation) flipped to negative in 2007 we can expect more La Ninas (cooling) than El Ninos (warming) for the next 30 years.
I wouldn't worry about the methane Zip. I'll show you why if you want to open a separate thread.