The recent paper’s case for green oceans in the Archaean eon starts with an observation: waters around the Japanese volcanic island of Iwo Jima have a greenish hue linked to a form of oxidised ...

Starting with the English Channel in 2017, the 27-year-old has already crossed Cook Strait, Catalina, Molokai and North ...

“Remote-sensing data show that waters rich in iron hydroxide, such as those around Iwo Island in the Satsunan archipelago, appear noticeably brighter than typical blue oceans,” he explained.