For years, seaweed has been arranged in dark green ribbons on rice, folded around sushi, dipped into soup, or left on the plate’s edge. It is now gaining more recognition in the food discourse. While food manufacturers are studying how a small amount might alter the nutritional profile of common food products, researchers are examining…
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Earth’s climate is always moving. The tropics get strong sunlight, while the poles lose more heat than they receive. The planet stays balanced because air and ocean water constantly move heat around. The ocean is very important in this process because it stores heat, carries it across long distances and releases it back into the…
Far below the reach of sunlight, the seafloor can split open and release jets of mineral-rich water into the dark. Around those openings, called deep-sea hydrothermal vents, the ocean turns into something that feels almost otherworldly. Towering chimneys grow out of rock. Hot fluids burst into near-freezing water. And whole communities of animals gather where,…
Coral reefs look solid, almost permanent. From a distance they seem like underwater stone cities, full of color and motion, built to last for ages. Yet their strength depends on a fragile chemical balance in the sea around them. As the ocean takes up more carbon dioxide from the air, that balance shifts. The change…
The ocean is full of motion. Currents sweep across basins, waves grind coastlines and tiny fragments of human-made material drift through it all. Some of those fragments are now so small that they pass through water, sediment and living tissue with ease. They also pick up other contaminants along the way, which turns a simple…
The ocean has a quiet way of concentrating trouble. Tiny traces of metal can drift through water at levels so low they seem almost meaningless, then end up packed into the bodies of fish, squid, seals and the hunters that eat them. By the time those atoms reach the top of the marine menu, they…
A slick of bright green on a lake can look almost unreal. Seen from shore it can pass for paint, pollen, or a strange summer stain. In water, though, that color often marks a sudden population boom, one driven by the same ingredients that help crops and lawns grow. Algae and cyanobacteria need light and…
Seen from a beach, coastal water can look like it changes moods overnight. One week it glows blue-green in the sun. A few days later it turns murky olive, rusty brown, or even a startling brick red. Those shifts can feel dramatic because they are dramatic. They reveal a moving mix of life, light, sediment…
Take a sip of seawater and your mouth gets the answer before your brain does. The ocean holds a huge load of dissolved minerals and that gives it its sharp, familiar taste. For a question that sounds almost childlike, the real answer stretches across rainstorms, rivers, deep cracks in the seafloor and spans of time…
The ocean looks steady from the shore. Under the surface, though, it is constantly trading gases with the air above it. That exchange has always been part of Earth’s rhythm. What’s changed is the amount of carbon dioxide we’re adding to the atmosphere and how much of it the sea is taking in. That matters…
The sea looks full of motion. Waves roll. Fish flash by. Plankton bloom and vanish. Beneath all that movement sits a quiet requirement, dissolved oxygen. Every breathless patch of water changes the rules for life below the surface. Scientists have a striking phrase for the recent shift. In one 2024 paper, researchers wrote that the…
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