Super El Niño Approaches as Trump Administration Disables Critical Climate Monitoring

The Looming Climate Threat

NOAA has confirmed the formation of El Niño in the tropical Pacific, with forecasters expecting it to strengthen through the winter of 2026-27. There is a 63% chance it will reach the 'very strong' threshold, placing it among the strongest events in the modern record dating back to 1950. In a world already experiencing record heat, such an event could bring more dangerous extremes: drought, wildfires, flooding, and in the Pacific, a more active hurricane season.

Historical Precedent and Modern Advantages

In 1877, one of the strongest El Niño events ever coincided with what was known as the 'year without a winter.' The same event was a major factor in one of the worst environmental disasters in history - the 'Great Famine' that killed between 30 and 60 million people. What distinguishes us from the victims of 1877 is not luck but data. Modern ocean monitoring and forecasting provide the advance warnings the Victorians lacked, saving thousands of lives and billions of dollars each year.

The Cost of Climate Inaction

The Trump administration has sought to cripple forecasting capabilities by 'descoping' the Ocean Observatories Initiative, a network that delivers real-time ocean data from more than 900 sensors. Built over a decade at a cost of approximately $386 million, the system is among the most advanced ocean-observing networks in the world. In 2025 alone, climate disasters cost the US $115 billion. The same data informs fisheries management that supports 2.1 million American jobs and $319 billion in annual sales. The administration was prepared to risk all of this to dismantle a system that costs just $56 million a year to run.

Political Interference in Climate Science

Pulling these arrays was not a budgetary exercise but rather an extension of the Trump administration's broader assault on federal climate science. The objective appears to be weakening programs that measure climate change and then claiming the problem is 'uncertain.' Independent researchers warn that removing US observations would increase the error in annual ocean-heating estimates by 163%, degrading forecasts and early-warning systems that help the country prepare for disasters.

A Temporary Reprieve and Uncertain Future

The scientific community and members of Congress reacted with fierce objections. In a rare display of bipartisan unity, the Senate unanimously passed a bill to prohibit the use of federal funds to dismantle the network until a thorough review is conducted. Last week, the NSF announced it would stop the removal and keep the system running. However, this is merely a temporary reprieve. Sensors have already been removed, and data streams have been interrupted. Their redeployment after removal is not equivalent to uninterrupted operation.

The Need for Permanent Protection

If we allow these systems to remain vulnerable to political whims, an extreme event will eventually catch us unawares. The panel NSF plans to convene should recommend permanent protection, and Congress should write that protection into law, so the instruments we rely on to understand the ocean are not at the mercy of an election outcome. The ocean stores most of the excess heat that shapes storms, marine heatwaves and climate shocks such as El Niño events. We now have the ability to measure it, issue forecasts based on what it tells us, and brace for what may be coming. We came far too close to throwing it away.