Oceans Won’t Be The Same Colour By The Year 2100

    • TNN
    • Publish Date: Feb 7 2019 1:53PM
    • |
    • Updated Date: Feb 7 2019 1:53PM
Oceans Won’t Be The Same Colour By The Year 2100

 Climate change will alter the colour of oceans by the end of the century. World’s oceans will be bluer and greener by 2100, a new study by the Massachusetts Institute of Technology in Cambridge found.


The changes won’t be extremely dramatic and most likely won’t be visible to naked eye. However, it would be important marker for scientists monitoring how climate change will affect our seas.

The warming planet is changing the distribution of phytoplankton across the world’s oceans. It’s well-known that seasonal changes regularly change colours, bit warmer oceans may permanently alter the mosaic of blues and greens as seen from space.

“When sunlight hits the ocean, water molecules absorb most of the light, except for the blue part of the spectrum, which is reflected back. In contrast, much of the ocean’s green hues come from phytoplankton, the microscopic plants that provide the foundation of the marine food web,” says the study.

Phytoplankton provide the organic matter that feed almost everything else in the ocean. So, if you like seafood, you must care about phytoplankton.

Scientists have found that climate change will likely alter the types of phytoplankton that abound in future oceans.

“To find out how much climate change will influence the ocean’s colour, the researchers built a model that simulates how ocean color will shift based on the amount and type of phytoplankton present.”

“The simulations, which take about three weeks to run on a large array of computers, revealed we can expect our oceans to look a little different in the future, though it depends on where you go,” said the study.


In subtropical regions, warm waters will get even warmer, driving out phytoplankton populations and even marine life, in general.

In water closer to poles, the warming will make the water appear greener while in subtropical regions, it will appear bluer.
 

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Climate change will alter the colour of oceans by the end of the century. World’s oceans will be bluer and greener by 2100, a new study by the Massachusetts Institute of Technology in Cambridge found.

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