A team of astrophysicists, geoscientists, chemists and life scientists affiliated with a host of institutions in Japan has found evidence that billions of years ago, the Earth's oceans were green.

Instead, they were a striking shade of green, shaped by ancient microbial life and the chemical composition of early seas. Now, scientists warn that Earth’s oceans may be shifting back to a ...

It's an opportunity for them to make the case to world leaders once again that investment in green technology is a good move for the Earth and economies alike.