Lawmakers Fight to Save $386M Ocean Observatory Project

A bipartisan group of lawmakers is racing to prevent the Trump administration from dismantling the Ocean Observatories Initiative (OOI), a $386 million network of more than 900 ocean sensors that has provided critical data on climate change, weather forecasting, and marine ecosystems for the past decade. On Monday, senators and House members sent urgent letters demanding the National Science Foundation (NSF) halt its plan to remove most of the system’s in-water infrastructure — with some lawmakers accusing the agency of acting illegally.

The Fight to Save the OOI

On June 15, 2026, a Senate letter co-led by Democratic Sen. Jeff Merkley of Oregon and Republican Sen. Lisa Murkowski of Alaska — signed by 10 senators — urged the NSF to reverse course and conduct a thorough review with input from the marine science community before taking further action. A separate House letter led by Reps. Zoe Lofgren (D-CA) and Jared Huffman (D-CA), signed by 23 Democratic members, went further, demanding the agency “cease this expensive, destructive, and — crucially — illegal action at once,” according to AP News.

“It just seems like this is supreme stupidity and a violation of the fundamental distribution of powers in our Constitution,” Merkley told the Associated Press. “This program is authorized, it’s funded, and for the administration to shut it down without direction from Congress violates that vision in which the people’s representatives decide what’s done and funded, and the executive branch executes that vision.”

Merkley and Murkowski also planned to file legislation Monday that would prohibit the NSF from spending federal funds to decommission instruments until a comprehensive review is completed.

What Is the Ocean Observatories Initiative?

The OOI is a science-driven ocean observing network funded by the NSF as a Major Facility. Built between 2009 and 2016 at a cost of $386 million, it became fully operational in June 2016. The system comprises more than 900 instruments deployed across five arrays in the Atlantic and Pacific Oceans, including the Coastal Endurance Array off Oregon and Washington, the Coastal Pioneer Array off North Carolina, the Global Irminger Sea Array between Greenland and Iceland, the Global Station Papa Array in the Gulf of Alaska, and the Regional Cabled Array off the Pacific Northwest.

Its data — freely available to the public — has informed more than 500 scientific publications and has been critical for understanding the Atlantic Meridional Overturning Circulation (AMOC), El Niño events, marine heat waves, and carbon sequestration processes. The NSF described the move not as a cancellation but as a “descoping” aligned with a strategy to prioritize “evolving scientific priorities and emerging technologies.”

A Broader Retreat From Climate Science

The OOI dismantling is part of a broader pattern of the Trump administration scaling back climate and environmental science. The administration’s proposed 2026 budget included a 55% cut to the NSF, and on April 28, 2026, Trump fired all members of the National Science Board, the independent governing body of the NSF, as The Guardian reported. The administration has also moved to reduce staffing at NOAA and the EPA, ease emissions regulations, and expand deep-sea mining.

Legal Questions and the Race Against Time

Federal appropriations law (31 U.S.C. 1301) requires the NSF to notify the House and Senate Appropriations Committees at least 30 days in advance of any planned decommissioning of agency-owned facilities or assets valued at more than $2.5 million. The House letter stated that no such notification had been transmitted. Merkley said his office was still confirming whether formal notification was given, but added: “If there was no notification, this would appear to be illegal.”

The urgency is acute: scientists are scheduled to begin pulling the first buoy off the Oregon coast on Tuesday, June 16. The NSF’s phased recovery plan spans approximately 15 months, with the Endurance Array recovery already underway, Pioneer Array recovery planned for June 2027, and the Irminger Sea and Station Papa Arrays scheduled for summer 2027.

Scientists Warn of Irreparable Damage

Scientists warn that dismantling the OOI would create an “irreparable blind spot” for monitoring El Niño, coastal flooding, and storm forecasting. Chris Robbins, Ocean Conservancy’s Associate Director of Scientific Initiatives, called the decision “absolutely myopic,” stating: “Walking away from a $369-million investment in a state-of-the-art system, a feat of engineering already paid for by the American people, is absolutely myopic. This system is a vital scientific asset that quietly protects American lives, communities and the economy through unfettered access to world-class scientific data,” as reported by Ocean Conservancy.

Hilary Palevsky, a professor of marine biogeochemistry and oceanography at Boston College, warned that the loss extends beyond hardware. “If we want to put [the instruments] back out again, we need people who know how to do it and the team that knows how to do it is being dismantled along with the infrastructure program itself,” she told The Guardian. “We’re potentially at risk of having a gap in our ability to regain the expertise to do things that we had sort of just figured out how to pull off.”

What’s Next

The coming days will be critical. With the first buoy scheduled for removal on Tuesday, lawmakers are racing against the clock. The Senate letter specifically cited the approaching El Niño — a periodic Pacific warming that disrupts weather patterns — as evidence that the cuts are particularly ill timed. “Eliminating most of this complex ocean monitoring system threatens the safety of our coastal communities while undermining our nation’s ability to monitor coastal environments, marine currents, and extreme weather events,” the senators wrote.

As the legal and legislative battles unfold, the scientific community watches with alarm. The OOI has been designated as a UN Ocean Decade endorsed project, and all previously collected data will remain accessible through the OOI Data Center through September 2028. But without intervention, the real-time data streams that have transformed ocean science for a decade will soon fall silent.