The idea that, somewhere beneath the North Atlantic, instruments that cost hundreds of millions of dollars to deploy and took years to engineer are now being pulled up and shipped to shore—not because they stopped working, but because someone in Washington decided they should—is subtly disorienting.
The Ocean Observatories Initiative, a network of over 900 deep-sea instruments dispersed across five arrays in the Pacific and Atlantic Oceans, was “descoped,” according to a May announcement from the National Science Foundation. Since 2016, the system, which cost about $368 million to construct and $48 million annually to maintain, has been operating nonstop. Ocean temperatures, marine biodiversity, carbon absorption, patterns of coastal flooding, and the slow, menacing changes in the Atlantic Meridional Overturning Circulation (AMOC), the vast conveyor belt of ocean currents that prevents temperature extremes that would make much of the Northern Hemisphere uninhabitable, were all monitored.
This is not being taken lightly by scientists who depended on it. And it’s difficult not to see why. To put it simply, Hilary Palevsky, a professor of marine biogeochemistry at Boston College who used OOI data to investigate how the ocean absorbs carbon dioxide, stated that gathering data from these isolated, pressure-crushed environments was an enormous engineering challenge. After more than ten years of trial and error and improvement, the team finally figured it out. The infrastructure and that team are currently being dismantled. “If we want to put the instruments back out again,” she replied, “we need people who know how to do it.” They are losing their jobs.
This is the part that is often overlooked when discussing the budget. Data loss is not the only issue. It is the type of institutional knowledge that requires a generation to reconstruct.
The timing is significant in and of itself. The dismantling comes after Trump fired every independent board member in charge of the NSF. It comes after Project 2025’s clear recommendation to close the OOI, which the Heritage Foundation called “the source of much of NOAA’s climate alarmism.” In 2025 and 2026, Congress twice thwarted plans to cut the program’s budget by 80%. Nevertheless, the NSF proceeded with decommissioning. This gives the impression that money was never a major factor in the decision.
During Trump’s first term as NOAA’s chief scientist, Craig McLean was direct about his observations. “This reflects the further lack of understanding that the current administration has of scientific value and scientific merit,” he stated. He went on to say that by doing away with such systems, the United States pushes itself “back yet again into a rear seat in global scientific leadership.”
The OOI’s moorings in the icy, turbulent Irminger Sea, which lies between Greenland and Iceland, have been supplying invaluable information on deep ocean convection, which is the winter mixing of surface and deep water that propels the AMOC. According to most accounts, scientists were only now starting to fully realize the scientific benefits of ten years of nonstop observation. The instruments had improved. The streams of data had stabilized. The order to remove everything then arrived.
Rhode Island Senator Sheldon Whitehouse claimed on social media that the decision to “turn off the monitors” was motivated by fossil fuel interests. It was a “shortsighted move” that would ultimately cost taxpayers more, according to Senator Chris Van Hollen. It’s still unclear if the 15-month recovery timeline will be slowed down by any legal challenge.
Rebuilding won’t just be a financial issue once the instruments are removed, the cables are cut, and the buoys are towed back to port. The ocean will continue to change—heating, acidifying, shifting—and the United States will be observing this process with far fewer eyes than it has in the past for a period of time that no one can yet pinpoint.
