Global warming is changing the color of the oceans

Rising temperatures to make oceans bluer and greener

A new study from researchers at the Massachusetts Institute of Technology finds that more than half of the world's oceans will shift color by the year 2100, due to changes in the types and location of phytoplankton.

Hickman said: "Crudely speaking, where the water is now quite blue because the phytoplankton [have a] relatively low biomass, you are going to see the water getting more blue, and where the ocean is relatively more green because the biomass is higher, you are going to see [it] getting [greener]". "So that's where we should be looking in satellite measurements, for a real signal of change".

In one of the starkest forecasts about climate change so far, MIT researchers have warned in Nature Communications that skewed ocean temperatures are causing significant change to the tiny creatures known as phytoplankton.

"In the same way that plants on land are green, phytoplankton are green as well, so the amount and different types of phytoplankton affect the colour of the ocean surface", said Dr Anna Hickman, co-author of the research from the school of ocean and earth science at the University of Southampton.

Dutkiewicz's co-authors include Oliver Jahn of MIT, Anna Hickman of the University of Southhampton, Stephanie Henson of the National Oceanography Centre Southampton, Claudie Beaulieu of the University of California at Santa Cruz, and Erwan Monier, former principal research scientist at the MIT Center for Global Change Science, and now assistant professor at the University of California at Davis, in the Department of Land, Air and Water Resources. Patches of ocean with a lot of algae appear greenish, for instance, while areas with fewer phytoplankton appear a deeper blue.

An MIT study is reporting that by the end of the 21st century, 50 percent of the world's ocean, will be a different color.

Importantly, she said, the shift in reflectance of blue/green light appeared to give an earlier indication of changes to phytoplankton than estimates of the amount of chlorophyll present, a measure now used to monitor phytoplankton levels. Some regions that are greener today, such as near the poles, may turn even deeper green, as warmer temperatures brew up larger blooms of more diverse phytoplankton. But Dutkiewicz says chlorophyll doesn't necessarily have reflect the sensitive signal of climate change.

RCom slumps 54% to all-time low after approaching bankruptcy court
The board of RCom expects substantial unsustainable debt and liabilities to stand extinguished under the NCLT process, he added. The latest blow for Rcom was the failure of the plan to sell assets worth Rs 18,000 crore owing to legal hurdles.

As well as changes in the blue of the oceans, we are also likely to see changes in the green. "If they were to magically change - or if we were to kill them off completely - there would be a lot of carbon coming out of the ocean and back into the atmosphere, and creating more problems that we have now". But it's been hard to detect and measure these changes, says Dutkiewicz, partly because there's so much variability in the ocean from year to year.

The ocean's waters show the colour they do depending on the light they reflect: Large swaths of water containing just water molecules reflect blue. "But they're important because they tell us a lot about what's changing in the ocean".

Previous research has shown that with warming, the oceans will see a reduction in phytoplankton in many places.

Scientists have been measuring the color of the world's oceans since the late 1990s, using these measurements to determine chlorophyll levels and as such, those of phytoplankton. For the study, they cranked up the global temperature in the model by 3 degrees Celsius by 2100 and found blue and green wavelengths responded the fastest.

According to their model, climate change is already changing the makeup of phytoplankton, and by extension, the color of the oceans.

"It could be potentially quite serious", Dutkiewicz added. Different types of phytoplankton absorb light differently, and if climate change shifts one community of phytoplankton to another, that will also change the types of food webs they can support.


  • Alexandria Ocasio-Cortez spoke with UK's Jeremy Corbyn on the phone

    Alexandria Ocasio-Cortez spoke with UK's Jeremy Corbyn on the phone

    Do you believe we should have an Equal Rights Amendment? "There's no time for moderation", he continued. Alexandria Ocasio-Cortez shared a telephone call and political affection Sunday with left-wing U.K.
    BMW 8 Series M850i xDrive First Edition revealed, bound for Oz

    BMW 8 Series M850i xDrive First Edition revealed, bound for Oz

    And that spec is... black exterior trim, 20-inch Y-spoke alloys (also in black) and a new shade of matte blue paint. The M850i First Edition is finished in a newly developed paint colour called Frozen Barcelona Blue metallic.
    Iowa Stuns No. 5 Michigan 74-59

    Iowa Stuns No. 5 Michigan 74-59

    Iowa forward Tyler Cook didn't have his best game, finishing with seven points and eight rebounds, but it didn't matter. Iowa next travels to Penn State (10-10, 3-6) for a 1 p.m. tipoff Sunday. "You make a mistake, run back, guard your man.
  • Liam Neeson admits he wanted to kill after friend was raped

    Neeson said he then "went up and down areas" with a baton "hoping I'd be approached by somebody". "So that I could. kill him". The actor admitted that he later realized that was he was doing was "awful" and "horrible, saying, "It's bad ".
    Samsung Galaxy S10, S10 Plus ‘almost’ official pictures pop up

    Samsung Galaxy S10, S10 Plus ‘almost’ official pictures pop up

    The OnePlus 7 will nearly certainly have a 6.4-inch 1080p HD display, just like the OnePlus 6T in late 2018. Ishan Agarwal in his revelation also said that Samsung will be launching a blue variant later of the S10e.

    Two British skiers feared killed in avalanche in Italian Alps

    La Repubblica newspaper said friends of the two British skiers raised the alarm when the pair failed to arrive at a meeting point. Ten people were killed in a series of avalanches in the Alps over the weekend, emergency services and media reported.
  • New Handmaid's Tale trailer: It's a new day in Gilead

    New Handmaid's Tale trailer: It's a new day in Gilead

    Then, the clip cuts to Offred, who issues a call to action to the residents of Gilead: "Wake up America, morning's over". During the brief trailer, there was a blink-and-you'll-miss-it glimpse of Emily with the little one.
    Millennials face increased risk of cancer 'because they're so fat'

    Millennials face increased risk of cancer 'because they're so fat'

    The younger the age group, the greater the size of the increase in all seven of the cancer types except for thyroid cancer. Researchers stressed that it remains the case that cancer is far more common in older age groups.
    Trump Has No Plans on Withdrawal of US Troops From South Korea

    Trump Has No Plans on Withdrawal of US Troops From South Korea

    The two sides face a March 1 deadline to avert a sharp increase in United States duties on $200bn in Chinese exports. "It's not going to be a stopgap".
  • Church services marks World Cancer Day

    Church services marks World Cancer Day

    However, currently, Rwanda has five hospitals that can provide cancer treatment. Secondary prevention is mainly through screening.
    Netizens term Anushka Sharma and Julia Micheal as 'doppelgangers'

    Netizens term Anushka Sharma and Julia Micheal as 'doppelgangers'

    This may not be unfamiliar territory for Anushka, but people have already started making memes and jokes at her expense. Some have even tagged her husband Virat Kohli, wondering if news of Anushka's doppelganger had reached him.
    European Union  powers recognize Guaido as Venezuelan leader, demand free and fair elections

    European Union powers recognize Guaido as Venezuelan leader, demand free and fair elections

    Canada and its Latin American allies in the Lima Group, along with the United States, have been pushing for Maduro's departure. Maduro claims the United States pledge to deliver $20 million in aid relief precedes a military intervention.


Latest news

Americans Eat Absurd Amount Of Chicken Wings For Super Bowl
We don't really know what parameters Google used to come up with its list of "uniquely searched Super Bowl foods by state". They are allowing you to earn Piece of the Pie Rewards even if you don't order pizza from them.

Egypt mummies: New tombs found in Minya
Wagdi Ramadan, stated that work at the tombs had started in February 2018 with the discovery of a singular tomb engraved in rock. Numerous differently-aged mummies of men, women and around 12 children were in good condition.

Exit from arms pact with Russian Federation
Moscow has strongly denied any breaches and accused Washington of making false accusations in order to justify its pullout. It's unclear whether Trump would withdraw from New START or allow it to expire if he were to win reelection in 2020.

Chinese new year marks the year of the pig
In 2016, China had issued dietary guidelines urging people to reduce their meat consumption. In addition to the Gregory calendar, China also uses a zodiac calendar based on 12 animals.

Kapil Sharma shares photo from Delhi reception, says celebrations unstoppable
The two got married in December 2018 and have since then already hosted two grand receptions, one in Amritsar and other in Mumbai. From Kapil Sharma dedicating a song to Ginni, to Mika Singh performing live, the reception turned out to be a musical event.

SpaceX successfully test-fires rocket engine Raptor
SpaceX last month said it was moving its testing of the Starship prototype to its south Texas site from the Port of Lost Angeles. As Business Insider reports , the engine underwent a radical redesign and is capable of 200 metric tons of thrust.

Freezing rain leads to school bus cancellations
Environment Canada has issued both a freezing drizzle and freezing rain warning for Greater Sudbury and vicinity. Eastern Quebec will see snow changing to freezing rain overnight from Monday to Tuesday .

United Kingdom home secretary signs order to extradite Vijay Mallya to India
And finally, the Banks Lawyers in England have objected in writing to my paying my legitimate tax dues to HMRC which I requested. Modi Government clears one more step to get Mallya extradited while Opposition rallies around the Saradha Scamsters.

European round-up: Messi injury worry after Barcelona are held
Barcelona , meanwhile, will be more concerned by Messi's injury than the result, with such an important game just three days away. Barcelona boss Ernesto Valverde admits he could be without his main man for Wednesday's first leg against arch rivals Madrid.

Kvitova beaten by Vekic in St Petersburg quarter-finals
So I'm really happy to win today". "It's gonna be a tough match but I'm set to show my best tomorrow". Vekic now faces Russian 34-year-old veteran wild card Vera Zvonareva , now ranked 97th in the semis.

Central Africa reaches peace deal with rebels
Patrice-Edouard Ngaissona is accused of leading the anti-Balaka for at least a year early in the fighting. Thousands have been killed in the violence and more than one million internally displaced.

Ariana Grande offered 1.5 million for tattoo removal
However, fans quickly noticed that the tattoo was missing a symbol and actually translated to "shichirin", a word for a BBQ grill. She then tweeted (and later deleted), "I also went back and got it fixed with the help of my tutor to be more accurate".

Ilhan Omar: 'I nearly chuckle' when people call Israel a democracy
Zeldin, who is Jewish, tagged her in the post and asked if she disagreed with the caller's rant. Also on Tuesday, Zeldin started the feud on Twitter.

Soundarya Rajnikanth to tie the knot with Vishagan Vanangamudi next week
Soundarya had earlier married industrialist Ashwin Ramkumar in 2010 and they filed for divorce in 2016 and then got separated. Her Kochadaiiyaan , India's first photorealistic motion capture film, although ambitious tanked at the box office.

Powerful storm hits Southern California, flooding highway
Coastal and valley areas received up to 1 inch of rain per hour during peak rainfall, according to the National Weather Service. A flash-flood watch is in place through Saturday morning for the entire San Francisco Bay Area and much of the Central Coast.

Other news