We are so used to the oceans being blue we use it as a signifier everyone recognizes on maps. However, the color is not ...

But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that released large amounts of ferrous iron into the water. The earliest ...

In the Archean eon, the ancestors of modern blue-green algae evolved alongside other bacteria that use ferrous iron instead of water as the source of electrons for photosynthesis. This points to high ...

The Florida Department of Health in Volusia County (DOH-Volusia) cautions the public of the presence of blue-green algae in ...

and future changes could shift ocean colors again. Earth is known as the “blue planet,” but a new study published in Nature suggests that our oceans may have once looked green instead of blue.

Officials are sampling water taken from Lorraine Lake in Deltona, where potentially toxic blue-green algae was spotted.

Water testing is underway for Lake Monroe and Lake George, and the Florida Department of Health is advising people to take precautions.

Blue-green algae thrive in the green ... of oxidised iron particles to turn the surface water green. Once all iron in the ocean was oxidised, free oxygen (0₂) existed in Earth’s oceans and ...