Author: Derrick Lester

The numbers that have been coming in over the past few years have challenged a comfortable assumption in a NOAA data center that processes temperature measurements from thousands of equipment placed throughout every major ocean basin. It was thought that the deep ocean, namely the water below one, two, and three kilometers, would be stable. Simple physics shields it from the rapid warming occurring at the surface, but it is not impervious to change forever. Heat travels slowly through water, and the mixing between the surface and deep levels is slow by any measure relevant to human timescales. For the…

When scientists first started removing amphipods from the Mariana Trench, which are crustaceans that scavenge the hadal zone at depths of up to eleven kilometers, and performing chemical analyzes on their tissue, the results were not what they had anticipated at the planet’s most remote and inaccessible biological environment. Mercury. Not trace amounts that fit the background of the natural geology. concentrations that are much higher than what the surrounding geology would generate on its own, in species that live in total darkness under pressures that crush almost everything that has ever been constructed by mankind, at a depth that…

Odysseas Froilan, a marine engineer, lowered a GoPro camera over the side of the hull on a line while a cruise liner was anchored in water that seemed from the deck to be any other picture-perfect blue Caribbean bay somewhere in the Bahamas. A few meters below the waterline, the footage did not show what most individuals standing at that barrier would have anticipated. Fish gathering close to the anchor chains, remoras clinging to the hull plating, pike-like shapes moving through the structural shadows, and at nite, sharks emerging from the shadows outside the ship’s frame, circling, passing, and swiftly…

Something begins to move south every spring when the snow melts across the cornfields of Illinois, Indiana, and Iowa. You can’t see it. Subterranean, it passes through drainage ditches and tributary streams before entering the Illinois, Ohio, and Missouri rivers, all of which feed into the Mississippi, which transports the entire pile to the Gulf of Mexico. Nitrogen and phosphorus, fertilizer nutrients that were applied to fields the previous season but weren’t completely absorbed by crops, the accumulated waste of millions of confined livestock, and regular chemical runoff from millions of suburban lawns, golf courses, and municipal drainage systems are…

The type of work that never makes headlines is taking place in a lab at Texas A&M’s Department of Oceanography in College Station at a rate that the larger oceanographic community is starting to take notice of. The apparatus in issue doesn’t appear particularly impressive; it consists of cylindrical devices that are designed to be thrown into the water and left there for years. They are about a meter long and roughly the diameter of a huge thermos. No live data dashboards, no video feeds, and no personnel watching displays in a control room. Simply a float that sinks and…

Over the course of several years and several lengthy sessions, diplomats from all over the world worked in the negotiating rooms at UN headquarters in New York to create the Biodiversity Beyond National Jurisdiction treaty, or BBNJ Agreement, which was adopted in 2023 and was hailed at the time as a landmark for ocean governance. When the gavel came down, there was genuine warmth in the language used in the room. A framework for safeguarding marine biodiversity in international waters finally existed on paper after twenty years of unsuccessful attempts. The paper’s shortcomings and the discrepancies between its coverage and…

Three massive turbines are spinning sixteen kilometers off the coast of Occitanie in a section of the Mediterranean that appears from the beach like any other deep blue stretch of open sea. They are not supported by foundations that are drilled into the ocean floor. They are positioned far enough out that the winds blow more forcefully and consistently than anything available closer to shore, and they float, tied to the bottom by mooring lines, rising and falling with the swells. The Éoliennes Flottantes du Golfe du Lion attained maximum capacity in July 2026. Thirty megawatts of clean electricity are…

There is rarely a clear path from a DARPA funding to a commercial product. Defense research typically focuses on finding solutions to particular military issues, resulting in technology that is kept in classified or semi-classified settings for years before anybody outside the original project is aware of its true potential. Similar steps were taken by the autonomous sonar mapping systems that are currently being used in commercial deep-sea exploration: they were first developed for naval surveillance and undersea domain awareness, then gradually declassified, licensed, and modified for the very different economic logic of locating and mapping objects on the ocean…

Operators at a shellfish hatchery on the Oregon coast discovered years ago that their oyster larvae would not survive if they just pumped in incoming Pacific water. Before the water came into contact with the tanks, it had to be analyzed, its chemistry measured, and its acidity evaluated. The larvae fail to build shells within hours of the water shift on days when upwelled deep water—which is colder, more acidic, and deficient in carbonate ions—reaches the surface and is drawn into the intake. Early adopters of this strategy modified their operations and managed to survive. Before anyone could pinpoint the…

The sound of an angle grinder on engineered stone is a constant in a San Gabriel Valley countertop fabrication facility. The hard, dense material being cut, which is intended to resemble real marble or quartz, leaves behind a white dust that clings to surfaces, clothes, and skin. That dust enters the lungs without adequate respiratory protection and water suppression. Additionally, the silica content of engineered stone can induce serious lung disease within a few years of continuous contact, in contrast to many job exposures that cause harm gradually over decades. Before anyone thot to systematically warn them, a few workers…