Trump Reverses Plan to Dismantle Ocean Monitoring Network

The Trump administration has abruptly reversed its plan to dismantle the Ocean Observatories Initiative (OOI), a $386 million network of more than 900 deep-sea sensors, following a bipartisan backlash in Congress that included a Senate bill to block the removal of critical monitoring instruments.

The National Science Foundation (NSF) announced on June 18 that it would “not proceed with further removal or descoping of equipment from the remaining arrays” and would develop plans to redeploy buoys that had already been removed. The reversal came just one day after the Senate passed a bipartisan bill to halt the dismantling, and after weeks of pressure from a coalition of lawmakers led by Sen. Jeff Merkley (D-OR) and Sen. Lisa Murkowski (R-AK).

A Network at Risk

The OOI, launched in 2015 with a planned lifespan of 25 to 30 years, comprises moored buoys, autonomous gliders, and seafloor instruments that provide continuous, real-time monitoring of ocean conditions. According to AP News, the network has tracked ocean circulation, marine ecosystems, climate change, and extreme weather for a decade, with its data freely available and contributing to over 500 scientific publications.

The Trump administration had repeatedly targeted the program for cuts, proposing an 80% budget reduction in both 2025 and 2026. The NSF had directed the removal of most instruments from waters off Oregon, Washington, Alaska, North Carolina, and Greenland by 2027. By September 2025, two of three buoys off Newport, Oregon, and all three off Grays Harbor, Washington, had already been removed and warehoused.

Bipartisan Pushback

The dismantling plan drew sharp criticism from lawmakers on both sides of the aisle. Sen. Merkley called the move “supreme stupidity and a violation of the fundamental distribution of powers in our Constitution,” noting that the program was “authorized, it’s funded, and for the administration to shut it down without direction from Congress violates that vision.”

House Democrats went further, accusing the NSF of acting illegally. As OPB reported, federal appropriations law requires the NSF to notify Congress at least 30 days in advance of any planned decommissioning of assets valued at more than $2.5 million — notification that was never transmitted.

Oregon state lawmakers from the bipartisan Oregon Coastal Caucus also joined the fight, calling the removal “a direct threat to safety, economic stability, and our ability to respond to rapidly changing ocean conditions.”

Scientific and Economic Stakes

The timing of the planned dismantling was particularly concerning to scientists, who were expecting an El Niño event in summer 2026. The OOI’s subsurface temperature sensors in the Pacific would have been critical for monitoring and forecasting El Niño impacts.

As Gizmodo reported, oceanographer Ed Dever of Oregon State University described the loss as “a crippling loss of information,” noting that scientists had “just got to the 10 year record, which will give you some hints, but it won’t continue on.”

Commercial fishermen also relied on the buoys for real-time data on waves, wind, and currents. Washington fisherman Joseph Veitenhans told OPB/KUOW that the buoys were crucial for safety during winter crabbing season: “Any time I leave Westport, I’m checking those cans.”

The annual operating cost for the OOI is approximately $48 million — about 0.003% of the federal government’s $1.6 trillion in annual discretionary spending.

What Comes Next

The NSF has stated it is developing plans to redeploy the equipment that was removed from the Endurance Array off the Pacific Northwest coast after servicing. However, the long-term funding outlook for the program remains uncertain. The reversal halts further dismantling but does not guarantee permanent funding, and questions remain about the condition of warehoused equipment and the cost of redeployment.

The episode highlights the power of bipartisan coalitions in checking executive branch actions on environmental science, while also raising broader questions about the future of federally funded climate research under an administration that has consistently sought to scale back such programs.