June 11, 2026 –The National Science Foundation has begun dismantling a major ocean monitoring network more than a decade earlier than planned.
Some scientists say it will be a “tragic” loss of crucial information about the world’s warming oceans.
The dismantling will end most of the monitoring in one of the nation’s most advanced, continuous observing systems less than halfway through its intended 25-year lifespan. Researchers warn that the loss of measurements will limit efforts to better understand ocean phenomena, including marine heat waves, hurricanes, fisheries and long-term shifts in climate, even as the oceans reach record-warm temperatures.
The Science Foundation-funded Ocean Observatories Initiative oversees web-like arrays of instruments and sensors from the surface to the sea floor in remote ocean regions. The foundation will remove four of its last five arrays by the end of summer 2027, according to a statement by Jim Edson, a principal investigator for the initiative and senior scientist at Woods Hole Oceanographic Institution.