As part of their ongoing "What If?" series, Randall Munroe of xkcd and Henry Reich of MinutePhysics explained what might happen if all of the oceans on Earth were drained and then teleported to Mars.

For centuries, Earth’s oceans have always been blue. However, research states that oceans will turn green again soon. By again, I mean, once upon a time the oceans used to be green; now, they are blue ...

Widespread ocean pollution threatens the health of more than 3 billion people, international study led by Boston College researchers shows Ocean pollution is widespread and getting worse, and when ...