Antarctic Melting Slows Atmospheric Warming and Speeds Sea Level Rise


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 28 November 2018

FISH, WATER, OCEANS, ICE, & PEOPLE

Melting Southern Continent Delivers Global Climate & Ocean Surprises

Antarctic melting slows atmospheric warming and speeds sea level rise,
University of Arizona, November 19, 2018.

MAIN POINTS

Melting Ice Effect
“...first to project how the melting of the Antarctic ice sheet will affect future climate...current climate models do not include the effects of melting ice on the global climate.”

"No one had looked at the big picture of what Antarctic ice sheet melting means for the global climate."

How
“...the research team modified one of the most current climate computer models to include the ice melt.”

“...they set the level of greenhouse gas emissions for the 21st century using the scenario known as RCP8.5, sometimes called the "business-as-usual" scenario.”

Delays Air Warming, Accelerates Rising Oceans
“As the Antarctic ice sheet melts, warming of the atmosphere will be delayed by about a decade but sea level rise will accelerate...”

“...the team's new research reveals that the additional freshwater from the melting ice sheet acts like a lid on the waters around Antarctica and slows the release of heat.”

"Warming won't be as bad as fast as we thought, but sea level rise will be worse."

Ten Inches More Ocean
“...found that by the year 2100, sea level could rise as much as 10 inches more than the previous estimate of approximately 30 inches by 2100.”

12 More Years to Reach 2 Degree Temp Increase
“Adding the melted ice into the team's model indicated that the global temperature would increase by 2 degrees C (3.6 F) by the year 2065, rather than the year 2053.”

“...it's still warming but it will warm less steeply and give us another 15-year grace period.”

Tropical Precipitation Shifting Further North
“…the tropical rain belt will shift north...”

"Our projections indicate the tropical rain belt will shift toward the Northern Hemisphere, making it slightly wetter in the Northern Hemisphere and slightly drier in the Southern Hemisphere than previously predicted,.

Surprise!
“...surprised by their findings. They did not expect the Antarctic meltwater to affect the global climate system.”

The Frontier of New Knowledge
"It's the first new identified feedback on climate in 20 years."

 

Southern Ice News & Research

2018 Status of All Antarctic Ice: Ice Loss Triples

Ice News, Big, Cold, Old, Things are Stirring: The Totten Glacier, East Antarctica

Moderate warming could melt East Antarctic Ice Sheet

Climate Crash News: Status of East Antarctic Ice

 

 

Antarctic Map
Canada/British Antarctic Survey detailed map of Antarctica
Canada's BAS PDF Antarctic Map

 

 

Really Worth Watching
Fantastic Video
Big data reveals glorious animation of Antarctic bottom water,
Nov. 23, 2015, ARC Centre of Excellence for Climate System Science.

Also See
El Nino-Ocean Interaction Video

 

 

Northern Ice

ARCTIC ICE, 2018: Beauford Sea Instability Points to Arctic Ocean Transformation

 

 

 

2018 Oceans, Fish, Water, & Ice News

Eco Crash News, 2018: Our Rapidly Shifting Seasons and Ecosystems

 

 

 

 

November 2018 News of Man & Nature

 

 

 

 

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Antarctic melting slows global warming speeds global sea rise

 

 

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