Why, of all the colors out there, are our oceans blue? The answer lies in the physics of visible light waves, specifically, how the ocean absorbs and reflects different colors of light.

Imagine the world’s oceans with their beautiful blue color. Now, imagine that the same oceans were green. This is the intriguing possibility suggested by new research from Nagoya University in Japan.

However, the ocean and its accompanying blue economy are actively being threatened by climate change, and problems will only worsen without proper government efforts. The ocean may also be key to ...

But our ocean’s health is in danger. How can the blue economy help restore and protect this vital planetary resource? Ahead of the 2022 UN Ocean Conference this June, we spoke with UN DESA’s ...