Earlier this year, the Trump administration initiated the removal of a $368 million ocean monitoring system that had been deployed for over a decade across various locations including the coasts of Oregon, Washington, Alaska, North Carolina, and the Irminger Sea between Greenland and Iceland. The network consisted of approximately 900 deep-sea instruments, including seismic sensors and robotic gliders positioned near seamounts and underwater volcanoes, which monitored marine ecosystems, coastal environments, and significant ocean currents influencing the global climate.

The National Science Foundation (NSF), which oversaw the system, began dismantling parts of the array in late 2025 despite the equipment being designed to operate for another 15 years. This process involved retrieving three moorings from Oregon and Washington, additional equipment from North Carolina, Alaska, and the Irminger Sea, as well as deactivating dozens of other instruments. The NSF cited a strategic shift toward more flexible scientific priorities, emerging technologies, and improved infrastructure lifecycle management as the rationale behind the action.

Following significant criticism from scientists, fishermen, and Congress, led by Senators Jeff Merkley (D-Oregon) and Lisa Murkowski (R-Alaska), the administration reversed course. On Saturday, an oceanographic research vessel operated by the Scripps Institution of Oceanography departed Newport, Oregon, to redeploy the first set of ocean monitors off the coasts of Oregon and Washington. The moorings will resume measuring factors such as water temperature and carbon dioxide levels, while robotic gliders will complement the data by extending the sensor coverage. Hourly meteorological and wave data from the buoys will be transmitted to the National Oceanic and Atmospheric Administration (NOAA) and made available to users, particularly commercial fishermen.

Fishermen in the Pacific Northwest have relied heavily on the system’s data to track conditions affecting marine life and ensure safe navigation, especially through hazardous areas like the Yaquina Bay bar near Newport. The data provided critical information on the timing and location of feeding grounds, oxygen-depleted zones impacting the $100 million Dungeness crab industry, and ocean wave heights. Some fishermen, such as Gary Ripka of Newport and Kurt Cochran of Northern California, expressed frustration over the loss of real-time ocean data, which complicates fishing operations and safety measures amid the ongoing development of a strong El Niño event.

Despite the partial restoration of the monitoring array, some researchers question whether the NSF remains fully committed to long-term ocean observation. While moorings are being redeployed in the Pacific Northwest, several instruments off North Carolina, Alaska, and the Irminger Sea are not currently scheduled for return due to budgetary constraints. NSF spokesman Michael England attributed these decisions to inflationary pressures and fixed funding levels for 2024.

These cuts have coincided with reduced support for other oceanographic programs, including the Global Ocean Biogeochemistry Array—a global network monitoring ocean chemistry and biology—and studies of the Atlantic Meridional Overturning Circulation, a critical current system affecting weather patterns across North America and Europe.

Internationally, these reductions have raised concerns, as the United States has traditionally supplied over half of the data feeding into the global ocean observation network. In response, the European Union and Canada recently announced a $240 million alliance to enhance ocean monitoring capabilities, involving more than 30 countries but notably excluding the United States. Vidar Helgesen, executive secretary of the United Nations’ Intergovernmental Oceanographic Commission, emphasized the significant global implications should the U.S. scale back its ocean observation infrastructure, warning that other nations face a substantial burden to compensate for any gaps left by reduced American contributions.