Environment & Energy
Related: About this forumResearchers studying 'doomsday glacier' make worrying discovery
https://thehill.com/homenews/nexstar_media_wire/4675792-researchers-studying-doomsday-glacier-make-worrying-discovery/Researchers studying doomsday glacier make worrying discovery
BY JEREMY TANNER - 05/20/24 10:00 PM ET
(NEXSTAR) Antarcticas doomsday glacier, referred to as such for its potential to dramatically raise global sea levels, is melting faster than we thought thanks to warmer sea water passing below it, according to a new study.
The researchers, led by glaciologists with the University of California, Irvine (UCI), said in a study published Monday in the Proceedings of the National Academy of Sciences that the Thwaites Glacier may be breaking apart much faster than previously believed.
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Using satellites and a technique called radar interferometry to track changes in surface elevation, the team found that the glacier appeared to be lifting several centimeters as pressurized tide water moved below the glacier across many miles, further inland than previously thought.
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Warmer seawater working its way under the glacier may help explain the rapid, past, and present changes in ice sheet mass and the slower changes replicated by ice sheet models, the study noted, adding that the pressurized seawater will create a vigorous melt that will further imperil the glacier.
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Lovie777
(15,002 posts)any questions?
Corporations are seriously aware, but profit over earth and her inhabitants means nothing to them.
Irish_Dem
(57,435 posts)they caused, which made the rich in the first place.
surfered
(3,095 posts)jaxexpat
(7,785 posts)It's a curious thing, because air temperature and sea rise phenomenon are occurring exponentially. Feed-back loops (some enormous) have been observed to support that aspect. What you say has, for me, a challenging logic, 18" rise in 16 years and only 6" rise in the following 20 years. That infers that the underlying phenomenon is slowing, stopped or reversing. Do the calculations require human extinction in order to hold up?
nitpicked
(792 posts)But one possible source for the 2040 statement:
https://www.chron.com/gulf-coast/article/galveston-rising-sea-levels-venice-19441565.php
surfered
(3,095 posts)sue4e3
(735 posts)Two feet of sea rise by 2060, compared to present-day levels, would be a shock to the system for Miami, where the average elevation is three feet. That's why local governmentsand the stateare spending billions to keep streets dry.
However, pinning down exactly how much sea rise South Florida could experience is a tough task.
Researchers know the two main factors in sea level rise are the temperature of the ocean and how much the ice sheets melt. As burned fossil fuels trap more heat in the atmosphere, that heat is largely being absorbed by the ocean. Hotter water physically takes up more space than cold water, so a hotter ocean means higher sea
surfered
(3,095 posts)Summers are getting hotter and coming sooner and hurricane predictions scare the bejeesus out of me
sue4e3
(735 posts)Two feet of sea rise by 2060, compared to present-day levels, would be a shock to the system for Miami, where the average elevation is three feet. That's why local governmentsand the stateare spending billions to keep streets dry.
However, pinning down exactly how much sea rise South Florida could experience is a tough task.
Researchers know the two main factors in sea level rise are the temperature of the ocean and how much the ice sheets melt. As burned fossil fuels trap more heat in the atmosphere, that heat is largely being absorbed by the ocean. Hotter water physically takes up more space than cold water, so a hotter ocean means higher sea https://phys.org/news/2024-05-sea-faster-south-florida.html