Nel Blu — Issue 008

nel blu™ ~ italian for into the blue
stories about the people, ideas, and investments shaping the future of our ocean

Earlier this month, the Trump administration moved to dismantle one of the world’s largest ocean observing systems.

The Ocean Observatories Initiative (OOI) is a network of more than 900 underwater sensors, seafloor observatories, and surface buoys deployed across the Atlantic and Pacific. Together, they continuously measure the ocean’s physical, chemical, geological, and biological conditions, giving scientists a real-time picture of how the ocean is changing.

Much like weather stations track the atmosphere, the OOI tracks what happens beneath the ocean’s surface, capturing changes that would otherwise go unseen.

Days after the proposed shutdown, bipartisan pressure from Congress and widespread concern from the scientific community prompted the National Science Foundation (NSF) to reverse course, announcing it would halt plans to remove or scale back the system.

Much of the weather we experience begins in the ocean. Hurricanes gather strength over warm water. El Niño reshapes weather around the world. Ocean temperatures influence rainfall, marine heatwaves, and coral bleaching. Understanding those changes starts with measuring the ocean.

The OOI helps scientists do exactly that. Its sensors measure ocean temperature, currents, chemistry, and other conditions that help researchers understand marine heatwaves, ocean acidification, deep-ocean ecosystems, and our changing climate.

One of the clearest examples is El Niño, the periodic warming of the tropical Pacific Ocean. As ocean temperatures shift, weather patterns ripple across the globe, contributing to drought in some regions, flooding in others, coral bleaching, marine heatwaves, and disruptions to fisheries.

Scientists warned that losing the OOI would create significant gaps in one of the world’s largest ocean observing networks, reducing the data available to improve weather forecasts, understand hurricane intensity, and monitor long-term changes already underway.

Without those instruments, scientists would be trying to understand the ocean the way a doctor tries to diagnose a patient without taking their vital signs.

The timing was striking. As the United States considered scaling back one of its flagship ocean observing systems, the European Union announced "Ocean Eye", a new initiative to expand ocean monitoring across Europe.

The NSF has since said the instruments already removed from the coasts of Oregon and Washington will be serviced and redeployed, preserving one of the world’s most important windows into the changing ocean.

What You’re Looking At:
A green sea turtle gliding over a coral reef in Raja Ampat, Indonesia, one of the most biodiverse marine regions on Earth. Green sea turtles are reef grazers, feeding mainly on seagrass and algae as adults, which helps keep marine habitats balanced and healthy.

Climate Week NYC • September 20th - 27th
Every September, New York becomes the center of gravity for climate finance, corporate sustainability, and global environmental policy.

Climate Week NYC is one of the world’s largest climate-focused gatherings, bringing together government leaders, investors, CEOs, philanthropies, and civil society organizations for hundreds of events across the city.

For ocean advocates, this year’s conversations are expected to focus on blue carbon, coastal resilience, offshore renewable energy, and financing for ocean-based climate solutions.

If someone in your life needs more ocean optimism — pass this newsletter along.