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CLIMATE WATCH - It was only 3 years ago when a group of distinguished climate scientists led by Erin C. Pettit (Oregon State University) said Thwaites Eastern Ice Shelf of the Thwaites Glacier/Antarctica, aka: Doomsday Glacier, could collapse “within as little as 5 years.” (Source: C34A-07 Collapse of Thwaites Eastern Ice Shelf by intersecting fractures, American Geophysical Union, December 15, 2021)
Assuming they nail it, what happens around the year 2026? Sea levels start rising more than previously but nobody is sure by how much as millions of people could be impacted by flooding. According to the Pettit study: “TEIS (Thwaites Eastern Ice Shelf) has the potential to increase the contribution of Thwaites Glacier to sea level rise by up to 25%.” TEIS buttresses one-third of the world’s widest glacier at 75 miles across. It is a big deal, a very big deal. All of which prompts the question whether it further destabilizes all of Thwaites? The answer seems to be “yes, it probably would.”
However, there are studies only two years later (2023) that claim the loss of Thwaites Eastern Ice Shelf will not impact sea level rise as much as suggested by the Pettit study. For example: Limited Impact of Thwaites Ice Shelf on Future Ice Loss From Antarctica., Geophysical Research Letters, 2023.
Today, there is plenty of research about Thwaites that runs the gamut from a UN climate change panel’s worst-case scenario that collapse would cause global sea levels to drastically rise by three feet by 2070, 10 feet by 2100 to a recent study by Dartmouth College researchers, which disputes the UN panel’s modeling, claiming Thwaites will not see that type of collapse this century. Yet, the Dartmouth report “says retreat is still dire.” (Source: Study Finds Highest Prediction of Sea-Level Rise Unlikely, Dartmouth.edu, August 21, 2024)
The Doomsday Glacier is located at the northern edge of the West Antarctica Ice Sheet. It drains into the Amundsen Sea. And it is big! It’s the world’s widest glacier at 75 miles across. And it is one of the most talked about glaciers in the world. It has its own study group: The International Thwaites Glacier Collaboration, which consist of UK and US scientists investigating one of the most unstable glaciers in the world. For perspective purposes, there are more than 500 named glaciers in Antarctica and many thousands more not named. But Thwaites stands out as the most notorious and most celebrated glaciology superstar.
Thwaites Glacier is like a sore that does not heal; it constantly throbs, drawing attention because it is a real threat to every coastal megacity on the planet. Alas the newest news is that ocean temperatures are skyrocketing, suddenly turning straight up like never before, starting within the past two years. In turn, that’s what works underwater at loosening up Thwaites for collapse. For example, a NYT headline d/d February 27, 2024, says it all: “Scientists Are Freaking Out About Ocean Temperatures.” And, there’s this: Live Science d/d May 21, 2024: Warm Ocean Water is Rushing Beneath Antarctica’s ‘Doomsday Glacier,’ Making Collapse More Likely.
With record-breaking ocean temperatures at rates nobody expected, how long will it take for the Doomsday Glacier to melt completely? According to Eric Rignot, Senior Research Scientist NASA Jet Propulsion Laboratory, when interviewed by USA Today d/d May 20th, 2024: “It will take many decades, not centuries… part of the answer also depends on whether our climate keeps getting warmer or not which depends completely on us and how we manage the planet.”
But low-lying metropolises like Miami Beach are not as concerned about melting taking “many decades, not centuries” as they are concerned about which decade starts the major melting process. This is where the rubber meets the road for low-lying megacities of the world, according to a UN report: New York City, Cairo, Mumbai, Jakarta, Shanghai, Copenhagen, London, Bangkok, Buenos Aires, Lagos, and Los Angeles are all at risk.
So, which decade does it start with full force? Nobody knows but Thwaites is tipsy. That much is known, and that’s why Thwaites has its own study group. Conceivably, the initial decades of collapse could be disastrous.
The risks of collapse have never been higher. Here’s why: Climate change mitigation efforts across the globe have been feeble as CO2 and global warming in parallel have set new all-time higher records in both 2023 and 2024. These are the highest records in human history. People that truly understand the implications are extremely edgy about the prospects of unexpected climate-related shocks over the near-term, meaning not 2050 and not 2100 and not some distant fantasy, but within society’s current generations.
Forget Net Zero Emissions by 2050 (“NZE”), that’s a crapshoot that creates false hope.
“Despite many pledges and efforts by governments to tackle the causes of global warming, CO2 emissions from energy and industry have increased by 60% since the United Nations Framework Convention on Climate Change was signed in 1992… pledges by governments to date – even if fully achieved – fall well short of what is required to bring global energy-related carbon dioxide emissions to net zero by 2050 and give the world an even chance of limiting the global temperature rise to 1.5 °C.” (Source: Net Zero by 2050, International Energy Agency, 2024) This report also claims: “As the major source of global emissions, the energy sector holds the key to responding to the world’s climate challenge.” The report offers solutions.
In that regard, of special note and concern, according to Copernicus Climate Change Service (C3S), global temperatures exceeded 1.5°C (2.7°F) above preindustrial for the first time in human history for a 12-month period from July 2023 to June 2024, when it averaged 1.64°C. According to the UN climate report, sustained temperatures above 1.5C pre-industrial triggers major tipping points like breakdown of ocean circulation systems and others, but that one alone is all it takes for all hell to break lose.
Human Rescue Plan
The gravity of the global situation is only too obvious when a group of glaciologists feels compelled to organize a plan to “Save the Doomsday Glacier” led by John Moore, Research Professor, Arctic Centre, Lapland University/Finland. Within the next two years the group intends to test a prototype fixit in a Norwegian fjord. ultimately installing a giant submarine curtain, up to 50 miles across, that seals off glaciers like Thwaites from Antarctic warm currents. The costs for erecting a curtain across the Amundsen Sea would be $80 billion to see if human intervention really works in the most challenging, treacherous region of the world.
“The proposal calls for a series of giant overlapping plastic or fiber curtains tethered to concrete foundations. To hold the warm current at bay, the curtain would stretch for 50 miles across the entrance to the Amundsen Sea and extend upwards for much of the 2,000 feet from the sea floor to the surface.” (Source: Fred Pearce, As ‘Doomsday’ Glacier Melts, Can an Artificial Barrier Save It? YaleEnvironment360, August 26, 2024)
Thus, human ingenuity is called into action for one of the biggest assignments of all time. Equally significant to the herculean human effort to put a big human thumb in the Antarctic dyke, is the significance of what this says about how far and how fast global warming has progressed. And, even more important, what’s to stop it? And how many doomsday scenarios can humanity handle?
Thwaites is not only a threat, but also an omen, a forewarning of what’s to come.
Every year 195 nations gather for their annual UN climate meeting to make declarations about what’s happened and what they plan on doing, but no tangible results since 1992 when they started. Instead, CO2 and global temps are setting new record highs by the year every year. This is directly opposite the stated objectives of UN climate conferences ongoing for over 30 years.
The next meeting this November is in Baku, Azerbaijan, an oil and gas country, similar to last year’s meeting in Dubai. And since oil and gas CO2 emissions are the principal cause of global warming, which, in turn, is the reason Thwaites threatens coastal megacities with flooding; why are oil and gas producing countries the focus for holding meetings about the problems of global warming?
Have Oil Producers hijacked UN climate conferences?
Answer: Yes, they have hijacked UN COPs (Conference of the Parties). Oh please! It’s blatantly obvious. COP28 was held in Dubai. The serving president of the climate conference COP28 was Sultan bin Ahmed Al Jaber, who’s chair of Dhabi National Oil Company and who publicly stated there is “no science” behind calls for a phase out of fossil fuels. But he conveniently overlooks reams, and reams, of long-standing scientific evidence of CO2 emissions directly linked to global temperature levels. It’s established science, period.
As of today, there are plenty of public statements by the fossil fuel industry that it has decided to ignore the climate change issue and move ahead full blast with increased production. This is reality. For example, The Guardian d/d April 2024: World Set to Quadruple Oil and Gas Production by 2030, Led by New US Projects. Fasten seat belts it’s blast-off time, meaning hotter and hotter, faster and faster, as Thwiates totters.
One can only hope that (1) geoengineering massive glaciers (how many more are there and will it even work?) and (2) geoengineering to remove CO2 from the atmosphere (extremely questionable as to proficiency of scale?) can save the day because an overkill of CO2 emissions is coming like there’s no tomorrow. Oh, by the way, the fossil fuel industry is also banking on technology to save the day.
But there are as many question marks as there are hopeful proposals and too little certainty. Alas, the world is riddled with sharp divisions over: (1) reality of climate change (2) how to tackle the biggest threat in human history (3) and, then, there’s this: Bloomberg News headline: Right-Wing Populist Backlash Is Threatening Climate Fight d/d June 20, 2024: “The green revolution is in trouble. The rise of the nationalist right in much of the Western world has placed huge question marks over commitments to transition out of fossil fuels to fight climate change. Donald Trump in the US and other populist politicians have vowed to jettison low-carbon policies and downplayed the impact of global warming.”
Meanwhile, the global-warming-timebomb is ticking faster than ever, working overtime, not waiting for some kind of universal resolution for the only issue, other than nuclear, that threatens to bring our own self-destruction.
The Thwaites protective curtain will hopefully be in place sometime by 2040, hmm.
(Robert Hunziker, MA, economic history DePaul University, awarded membership in Pi Gamma Mu International Academic Honor Society in Social Sciences is a freelance writer and environmental journalist who has over 200 published articles appearing in over 50 journals, magazines, and sites worldwide.)
