Why Are Plants Green?

There's new evidence on how and why plants shun the (absorption of the) colour green to regulate energy

Here’s a quote from the article,

In the pages of Science, scientists finally provided a more complete answer. They built a model to explain why the photosynthetic machinery of plants wastes green light. What they did not expect was that their model would also explain the colors of other photosynthetic forms of life too. Their findings point to an evolutionary principle governing light-harvesting organisms that might apply throughout the universe. They also offer a lesson that — at least sometimes — evolution cares less about making biological systems efficient than about keeping them stable.

Here’s the link on the magazine story, which gives almost a moment to moment description of what’s going on in plants in terms of harvesting energy.