It’s not just global air temperatures that are heating up. Ocean heat waves are happening more frequently and lasting longer, too—a potential major threat to coral reefs and other marine organisms, ...

During recent storms, satellites recorded ocean waves averaging nearly 20 meters high—as tall as the Arc de Triomphe in Paris and the largest ever measured from space. Moreover, satellite data now ...

It’s something surfers, sailors, and coastal walkers have quietly noticed for centuries: ocean waves often seem to come in a repeating pattern, with every seventh wave standing out as bigger, stronger ...