World’s oceans losing their greenness through global heating, study finds

Researchers say decline in phytoplankton suggests weakened planetary capacity to absorb carbon dioxide

The world's oceans are losing their greenness owing to global heating, according to a study that suggests our planet's capacity to absorb carbon dioxide could be weakening.

The change in the palette of the seas is caused by a decline of phytoplankton, the tiny marine creatures that are responsible for nearly half of the biosphere's productivity.