Author: Derrick Lester

Climate scientists worked quietly confidently about the Southern Ocean for about thirty years. The numbers made it very evident that it was absorbing a significant amount of carbon. It was verified by models. Datasets supported it. The broader understanding of the global carbon cycle was constructed, at least in part, on the basis of this settled assumption. The type of paper that forces readers to read the abstract twice then emerged. A team led by Guorong Zhong from the Chinese Academy of Sciences discovered something unsettling in a 2024 publication in Communications Earth & Environment: the Southern Ocean’s carbon sink…

A certain type of money comes in stealthily and transforms everything. Unlike announcements from Silicon Valley, the $15 million grant that Scripps Institution of Oceanography received earlier this March from the Fund for Science and Technology is not ostentatious. No launch of a product. No response from the stock ticker. Just scientists, a strategy, and access to regions of the planet that most people will never see and, to be honest, have hardly given much thought to. Launched just last year, the Fund for Science and Technology, which is funded by the late Microsoft co-founder Paul G. Allen’s estate, aims…

The lack of interest in DePTH-GPT outside of scientific circles is somewhat unsettling. When China introduced it in November 2025, the news spread around the world for a day or two before the discussion largely moved on. That is incorrect. This is not a specialized research tool; rather, it is a sign of the direction and leadership of ocean science. Deep-sea Perception, Thinking and Habitat GPT, or DePTH-GPT for short, is an artificial intelligence model designed to handle the kinds of data that have always made deep-sea research so challenging: video footage from submersibles traveling through pitch-black water, acoustic recordings…

The way the ocean retains centuries’ worth of climate memory in its icy, dark layers, regardless of whether anyone is paying attention, is something subtly amazing. Oceanographers at the Scripps Institution of Oceanography in La Jolla, California, have been observing for many years. They are now going to take a closer look thanks to a $15 million donation from a private foundation founded on the wealth of the late Microsoft co-founder Paul Allen. The Fund for Science and Technology, a foundation established only a year ago with a pledge to invest at least $500 million in research over the following…

In lengthy campaigns, there comes a time when the goal you’ve been working toward for years suddenly becomes a reality rather than a goal. The world’s oceans reached that point on January 17, 2026. Formally known as the Agreement on the Conservation and Sustainable Use of Marine Biological Diversity of Areas Beyond National Jurisdiction, the High Seas Treaty came into effect. For the first time in human history, international waters—those enormous expanses of ocean that don’t belong to any one nation and were previously essentially unprotected—have a legal framework. Given the scope of what was accomplished, it’s difficult to ignore…

Scientists believed they understood the origin of methane for the majority of the previous century. wetlands. paddies of rice. cow stomachs. Lake bottom sediments are deep and oxygen-starved. Methane could form anywhere there was a lack of oxygen. However, the open ocean’s surface never quite matched that image, and the contradiction lingered for decades, slightly embarrassing, like a stain on a textbook that no one wanted to thoroughly clean. A group at the University of Rochester claims to have finally identified the cause. The response, which was published in PNAS this spring, is more bizarre and unsettling than most climate…

No one anticipated the coral graveyard that lies nearly a kilometer below the surface off the coast of the Galápagos. Not the visitors who come each year to see the tortoises and finches. Nor do the majority of marine biologists. Until recently, scientists believed that areas like these were the stable ones, the sections of the ocean that just survived while everything above them burned and bleached. The reefs are located in cold, dark water where sunlight never really reaches. It’s beginning to seem like a generous assumption. Recent research published in PNAS by a team at the University of…

The way the ocean has been carrying out the planet’s dirty work has an odd quietness. The real story has been taking place somewhere far less photogenic, miles below the surface, in water that nearly no one will ever see, while the majority of the climate conversation focuses on wildfires, drought, and the temperature charts that flash across cable news. Despite the startling numbers, they hardly ever receive much attention from the general public. The ocean has absorbed about 91% of the extra heat that greenhouse gases have trapped. Not the atmosphere. Not the ground. the sea. The casualness with…

A team of researchers led by Zhetao Tan and colleagues published a scientific paper in Nature Climate Change in November 2025 that merits far more public attention than it has gotten. The study examined sixty years of ocean observations in four distinct categories: salinity shifts, warming, acidification, and deoxygenation. It posed a question that had been mostly ignored in earlier analyses: what happens when all of these changes happen simultaneously in the same location? As it happens, the result is much worse than what any one measurement had indicated. The researchers employed a framework known as “compound climatic impact-drivers,” and…

When scientists visited the western side of the Mid-Atlantic Ridge in 2007, an Ostracod—a tiny, barely noticeable crustacean known colloquially as a seed shrimp—was swarming in enormous numbers somewhere along the ridge in the complete darkness between Iceland and the Azores. They gathered samples. They sent them to specialists. It turned out that the creature might be a completely unidentified species. It had not yet been given a name. No one had even thought to search for it there. That moment encapsulates a fundamental aspect of the deep North Atlantic: an area so poorly understood that every expedition into it…