The Trump administration’s National Science Foundation (NSF) has begun dismantling the Ocean Observatories Initiative (OOI), a long-running deep-ocean monitoring system that uses more than 900 instruments in the Pacific and Atlantic. Multiple outlets report that the instruments are being pulled from locations near the U.S. coasts and in the North Atlantic region, including areas off Oregon, Washington, Alaska, North Carolina, and between Greenland and Iceland (the Irminger Sea). The OOI network has been collecting data for about a decade on ocean physical, chemical, geological, and biological conditions, including observations used to study major currents such as the Atlantic circulation system that some researchers say could be at risk of collapse as the climate warms.
Several sources say the monitoring supports scientific research on marine ecosystems and marine heat waves and also contributes to broader climate and weather understanding, including monitoring that can affect forecasts related to phenomena such as El Niño and the Atlantic Meridional Overturning Circulation (AMOC). Scientists and other observers express concern that dismantling the infrastructure will reduce data continuity and degrade the accuracy of estimates used for climate records and weather prediction. Costs and long-term operation timelines are also cited, with the system initially expected to run for decades.