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A ‘once every 7.5 million years’ event is currently unfolding in Antarctica:
Posted on 9/15/23 at 3:11 pm
Posted on 9/15/23 at 3:11 pm
they're really beating the drum this week
A ‘once every 7.5 million years’ event is currently unfolding in Antarctica: ‘To say unprecedented isn’t strong enough’
In the past eight years, sea ice in Antarctica has reached a new record low four times, the Australian Broadcasting Corporation (ABC) reports. The first three times, ice levels that have dropped in the summer have rebounded in the winter.
But this year — during what is currently winter in Antarctica — scientists have confirmed that the ice is not re-forming, leaving long stretches of the Antarctic coastline bare.
What’s happening?
According to physical oceanographer Edward Doddridge, this is the first time an event like this has been observed, the ABC reports — and it’s extremely unlikely to have happened on its own.
“To say unprecedented isn’t strong enough,” Doddridge told the ABC. “This is a five-sigma event. … Which means that if nothing had changed, we’d expect to see a winter like this about once every 7.5 million years. … There are people saying it could be natural variability … but it’s very unlikely.”
According to Doddridge and others, the most likely cause is human activity. People create air pollution through activities like burning fuel, and that pollution traps heat on our planet, heating up the atmosphere and the ocean. Some combination of warmer water and higher-energy weather patterns is likely what’s melting the ice, scientists told the ABC.
Why does the loss of Antarctic ice matter?
Polar ice is a major factor in the Earth’s “albedo,” which is the amount of light reflected from the surface instead of being absorbed. When there’s more ice, the planet’s albedo is higher, and the sun doesn’t warm it as quickly. When ice melts, the planet starts absorbing more heat.
This also creates “ice-albedo feedback,” the ABC says — a vicious cycle in which melting ice makes the ocean heat up faster, causing even more ice to melt. If too much of the polar ice is lost, it could reach a tipping point that will lead to the Earth heating up much more quickly.
Petra Heil, a sea ice physicist from the Australian Antarctic Division, told the ABC, “We might end up in a new state. That would be quite concerning to the sustainability of human conditions on Earth, I suspect.”
A much hotter environment has frightening implications for human health. It could also destroy the fish we rely on for food, the farmland where we grow crops, and the rainforests we need for oxygen.
LINK
A ‘once every 7.5 million years’ event is currently unfolding in Antarctica: ‘To say unprecedented isn’t strong enough’
In the past eight years, sea ice in Antarctica has reached a new record low four times, the Australian Broadcasting Corporation (ABC) reports. The first three times, ice levels that have dropped in the summer have rebounded in the winter.
But this year — during what is currently winter in Antarctica — scientists have confirmed that the ice is not re-forming, leaving long stretches of the Antarctic coastline bare.
What’s happening?
According to physical oceanographer Edward Doddridge, this is the first time an event like this has been observed, the ABC reports — and it’s extremely unlikely to have happened on its own.
“To say unprecedented isn’t strong enough,” Doddridge told the ABC. “This is a five-sigma event. … Which means that if nothing had changed, we’d expect to see a winter like this about once every 7.5 million years. … There are people saying it could be natural variability … but it’s very unlikely.”
According to Doddridge and others, the most likely cause is human activity. People create air pollution through activities like burning fuel, and that pollution traps heat on our planet, heating up the atmosphere and the ocean. Some combination of warmer water and higher-energy weather patterns is likely what’s melting the ice, scientists told the ABC.
Why does the loss of Antarctic ice matter?
Polar ice is a major factor in the Earth’s “albedo,” which is the amount of light reflected from the surface instead of being absorbed. When there’s more ice, the planet’s albedo is higher, and the sun doesn’t warm it as quickly. When ice melts, the planet starts absorbing more heat.
This also creates “ice-albedo feedback,” the ABC says — a vicious cycle in which melting ice makes the ocean heat up faster, causing even more ice to melt. If too much of the polar ice is lost, it could reach a tipping point that will lead to the Earth heating up much more quickly.
Petra Heil, a sea ice physicist from the Australian Antarctic Division, told the ABC, “We might end up in a new state. That would be quite concerning to the sustainability of human conditions on Earth, I suspect.”
A much hotter environment has frightening implications for human health. It could also destroy the fish we rely on for food, the farmland where we grow crops, and the rainforests we need for oxygen.
LINK
Posted on 9/15/23 at 3:13 pm to djmed
quote:
they're really beating the drum this week
I see TV commercials for climate change. 30 seconds of images with a voice over promising that it's settled science and lethal. I bet it's taxpayer funded.
Posted on 9/15/23 at 3:13 pm to djmed
Fear porn for the greenies to beat off too.
Posted on 9/15/23 at 3:14 pm to djmed
quote:
A ‘once every 7.5 million years’ event is currently unfolding in Antarctica:
Michael Moore actually saw his penis today?
This post was edited on 9/15/23 at 3:30 pm
Posted on 9/15/23 at 3:15 pm to Azkiger
Maybe they should send more ships down there to get stuck in the ice.
Posted on 9/15/23 at 3:15 pm to djmed
And not two rat phucs were given.
All these mamby pamby retards don’t even know how to interpret real data.
All political drama at this point.
All these mamby pamby retards don’t even know how to interpret real data.
All political drama at this point.
Posted on 9/15/23 at 3:17 pm to djmed
Well, that convinces me. I was gonna fire up the BBQ pit before the LSU game tomorrow. But I'll have a salad instead. Gotta save the planet.
Posted on 9/15/23 at 3:23 pm to djmed
There have heat waves all over the world this year. In Texas, we had it bad in DFW and last year as well.
I suspect it has something to do with the gigantic under sea volcano that blew 58,000 olympic size swimming pools of moisture into the air. It added 10% more moisture into the upper atmosphere, which traps the heat as well.
We had big swings in temps over the centuries when there was no fossil fuels. Just fires in the house and farting herds.
I suspect it has something to do with the gigantic under sea volcano that blew 58,000 olympic size swimming pools of moisture into the air. It added 10% more moisture into the upper atmosphere, which traps the heat as well.
We had big swings in temps over the centuries when there was no fossil fuels. Just fires in the house and farting herds.
Posted on 9/15/23 at 3:23 pm to djmed
quote:
once every 7.5 million years
quote:
unprecedented
Does not compute
Posted on 9/15/23 at 3:23 pm to David_DJS
Blood letting was once settled science too
Posted on 9/15/23 at 3:24 pm to Audustxx
That’s what we need to do to these people
Posted on 9/15/23 at 3:24 pm to djmed
quote:I feel like I live through a "one in 250 or 500 year" weather event about every other year
A ‘once every 7.5 million years’ event
Posted on 9/15/23 at 3:26 pm to djmed
The odds of an event happening in a span of 75 years (a lifetime) are 100% guaranteed when the single event comes from an infinite pool of possible events.
Posted on 9/15/23 at 3:28 pm to jp4lsu
quote:
suspect it has something to do with the gigantic under sea volcano that blew 58,000 olympic size swimming pools of moisture into the air. It added 10% more moisture into the upper atmosphere, which traps the heat as well.
That’s exactly what is causing this
Posted on 9/15/23 at 3:45 pm to djmed
As I've said many times before, I do not deny that the climate is changing. The Earth is going to do whatever the Earth wants to do. I do not believe that humans have very much effect on the environment on a global scale.
How long have governments been regulating this shite? Over 5o years? After all of that time, why are things (apparently) worse than ever before? Certainly, if man-made global warming truly exists, then things should be better than they were 50 years ago, right? I mean, haven't we been recycling and singing kumbaya long enough to at least reduce the global temperature by 1/1000th of a degree by now?
That's how I know it's bullshite.
How long have governments been regulating this shite? Over 5o years? After all of that time, why are things (apparently) worse than ever before? Certainly, if man-made global warming truly exists, then things should be better than they were 50 years ago, right? I mean, haven't we been recycling and singing kumbaya long enough to at least reduce the global temperature by 1/1000th of a degree by now?
That's how I know it's bullshite.
This post was edited on 9/15/23 at 3:47 pm
Posted on 9/15/23 at 4:04 pm to djmed
quote:
unprecedented
The new dog whistle.
An unprecedented threat requires unprecedented action....we can't hold elections.
Posted on 9/15/23 at 4:04 pm to djmed
quote:
A much hotter environment has frightening implications for human health. It could also destroy the fish we rely on for food, the farmland where we grow crops, and the rainforests we need for oxygen
Didn't hotter environments lead to explosions in vegetation and the rise of the dinosaurs?
This post was edited on 9/15/23 at 9:12 pm
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