Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising temperatures are once again causing the world’s oceans to turn green.

It may sound strange, but whale excrement plays a critical role in fertilizing the ocean! Packed with iron and essential nutrients, whale poop helps stimulate plankton growth, which supports marine ...

It's spring, the sun is shining and something is about to happen with the plankton in the cold waters of the Arctic Ocean.