Color changes of oceans, due to climate change, may not be visible to the human eye, but satellites can measure hue and provide an early warning sign of the consequences of climate change in marine ecosystems
Ocean’s color will change by the end of this century due to climate change - climate short science news

By the year 2100, the blue parts of the oceans will be a bit bluer and the green parts will be a bit greener. Scientists predict this on the basis of a new model describing absorption of light by phytoplankton in the oceans.

Populations of phytoplankton will change with climate change. In the subtropics, phytoplankton will become less abundant so that not much color will be reflected, except for blue that is reflected by water. At the poles and the equator, more phytoplankton will start to bloom, which will reflect more green color.

Scientists say that satellites could monitor changes in hue of the oceans, and use this as an early warning sign of climate change in marine environments.

Read the full story: Massachusetts Institute of Technology
Scientific publication: Nature Communications