NSF Halts Cuts to $386 Million Ocean Sensor Network After Senate Blocks Dismantling
Updated
Updated · The Guardian · Jun 23
NSF Halts Cuts to $386 Million Ocean Sensor Network After Senate Blocks Dismantling
3 articles · Updated · The Guardian · Jun 23
Summary
NSF last week stopped removing Ocean Observatories Initiative equipment, said it would keep the network running, and plans to redeploy sensors already pulled from the water.
The reversal followed fierce objections from scientists and a unanimous Senate bill barring federal funds from dismantling the network until a formal review is completed.
More than 900 sensors across five sites feed real-time ocean data; NSF had planned to strip arrays from four sites in a descoping effort critics called dismantling.
Researchers say losing the observations would raise annual ocean-heating estimate errors by 163%, weakening forecasts as NOAA warns El Niño has formed with a 63% chance of becoming very strong this winter.
The network cost about $386 million to build and $56 million a year to run, while US disasters caused $115 billion in losses in 2025 alone.
The National Science Foundation (NSF) reversed its earlier decision to dismantle the Ocean Observatories Initiative (OOI) on June 18, 2026, after considerable advocacy highlighted the OOI’s vital contributions to science and public safety. This reversal halted plans to retrieve OOI instruments from the ocean, ensuring that the network—operational since 2016 after a $360 million investment—continues its crucial role in monitoring ocean conditions. The OOI’s arrays are essential for tracking marine heatwaves and collecting data on how the ocean affects major weather events like hurricanes, supporting both scientific research and coastal communities.