New research claims that Earth's oceans could one day turn purple as our ongoing fight with climate change continues.

Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue ... borrowing too much from science fiction. Purple oceans would be possible on Earth if the levels ...

The first life forms used retinal instead of chlorophyll, absorbing green light and reflecting red and blue—turning the planet an eerie purple. Chlorophyll wasn’t always king. Retinal ...