Explosion in Antarctic sea ice levels may cause another ice age

[Geee]

Fox News

Upside-down "rivers" of warm ocean water may be one of the causes of Antarctica's ice shelves breaking up, leading to a rise in sea levels. But a new study suggests an increase in sea ice may lead to a much more devastating change in the Earth's climate — another ice age.

Using computer simulations, the research suggests that an increase in sea ice could significantly alter the circulation of the ocean, ultimately leading to a reverse greenhouse effect as carbon dioxide levels in the ocean increase and levels in the air decrease.

“One key question in the field is still what caused the Earth to periodically cycle in and out of ice ages,” University of Chicago professor and the study's co-author, Malte Jansen, said in a statement. “We are pretty confident that the carbon balance between the atmosphere and ocean must have changed, but we don’t quite know how or why."

[Geee]

@Valin -  now the question is - do you want to die hot or cold?

[Valin]

6 minutes ago, Geee said:

@Valin -  now the question is - do you want to die hot or cold?

 

Fire and Ice

 

"Some say the world will end in fire,

Some say in ice.

From what I’ve tasted of desire

I hold with those who favor fire.

But if it had to perish twice,

I think I know enough of hate

To say that for destruction ice

Is also great

And would suffice."

Robert Frost

 

[Valin]

Antarctic ice cliffs may not contribute to sea-level rise as much as predicted

charles the moderator

1 week ago October 23, 2019

Jennifer Chu | MIT News Office

Monday, October 21, 2019

Study finds even the tallest ice cliffs should support their own weight rather than collapsing catastrophically.

Read this at MIT News

Antarctica’s ice sheet spans close to twice the area of the contiguous United States, and its land boundary is buttressed by massive, floating ice shelves extending hundreds of miles out over the frigid waters of the Southern Ocean. When these ice shelves collapse into the ocean, they expose towering cliffs of ice along Antarctica’s edge.

Scientists have assumed that ice cliffs taller than 90 meters (about the height of the Statue of Liberty) would rapidly collapse under their own weight, contributing to more than 6 feet of sea-level rise by the end of the century — enough to completely flood Boston and other coastal cities. But now MIT researchers have found that this particular prediction may be overestimated.

In a paper published today in Geophysical Research Letters, the team reports that in order for a 90-meter ice cliff to collapse entirely, the ice shelves supporting the cliff would have to break apart  extremely quickly, within a matter of hours — a rate of ice loss that has not been observed in the modern record.

(Snip)

[Valin]

@Geee

 

3 words describe the Global Climate CONNECTED...NON-LINEAR...CHAOTIC.

ie.....Something is going on. We're not Really sure what. We're not sure if its Bad or Good. If its Bad We don't really know what can by done.