Ocean

Much of the heat and carbon produced by humans is absorbed by the ocean. New research has shed light on the role that underwater waves play in moving that heat and carbon around our oceans, an important factor in predicting climate change.

In July last year, Saildrone launched one its sensor-packed unmanned aquatic drones on a voyage of discovery in the North Pacific, tasked with filling in ocean mapping blanks around Alaska's Aleutian Islands as well as off the coast of California.

After nearly 20 years of negotiations, 193 nations have come together to draft the High Seas Treaty, an agreement that will set the world on track to protect 30% of international waters, fund marine conservation and better regulate sea-bed mining.

A new study has shown that foods that come from the ocean or freshwater, known as "blue foods," have the potential to address several important global issues, including nutritional deficits, disease, and climate change.

Green hydrogen can't be viewed as environmentally friendly if it drinks huge amounts of fresh water, or results in the bulk output of toxic chlorine, according to RMIT researchers who say they've come up with a cheap technique that does neither.

If you're designing robots for the exploration of oceans on other planets, you want something that's tough, versatile and easy to store in a spacecraft. It turns out that soft-bodied robots inspired by a marine organism may be the perfect choice.

It’s a cruel irony that 70% of the Earth’s surface is covered in undrinkable water. Scientists have now modeled the feasibility of a hypothetical system that can capture water vapor from ocean air and condense it into drinking water, at a large scale.

Imagine if you were tasked with sorting and separating thousands of tiny fossils, most of them less than a millimeter wide. It would quite a tedious, time-consuming task … which is why scientists have recently created a robot to do the job.

The green economy desperately needs huge quantities of battery metals, and they're sitting right there on the deep ocean floor. Here's a device designed to harvest them with the minimum possible impact to one of the world's last untouched ecosystems.

By using advanced microscopes and imaging technology to study tiny pockets of liquid trapped in ancient minerals, scientists have gained new insights into how seawaters have changed over time, and how they might do so in the future.

Scientists from King Abdullah University of Science and Technology studying tiger sharks have leveraged their far-roaming tendencies to map out the largest seagrass system in the world, by using cameras attached to their backs.

The seafloor is rich in valuable metals, but gathering them is disruptive to the environment. An international project has now tested a system called Apollo 2, which can vacuum up metal nodules without kicking up sediment.