Ozone Layer Thinning Over Populated Areas, Scientists Warn

07 February, 2018, 02:08 | Author: Bertha Harmon
  • 2_6_Ozone hole

The ozone layer that protects people from the sun's ultraviolet radiation is not recovering over most highly populated regions, scientists warned on Tuesday.

The greatest losses in ozone occurred over Antarctica but the hole there has been closing since the chemicals causing the problem were banned by the Montreal protocol.

For the study, the team made a record on ozone layer for 30 years by combining measurements of atmospheric ozone from 11 different datasets. This is partly due to the fact that ozone is also formed in the troposphere - at altitudes below about 15 km - by human activities.

Contrary to recent scientific assumptions, the ozone layer, which protects life on the Earth from harmful ultra-violet radiation, continues to deplete on a global scale even after decades of efforts to protect it, according to an worldwide study on Tuesday. But warming trends could be strengthening these currents, moving more ozone to the poles and leaving less at lower latitudes. The cause is now unknown.

2_6_Earth's atmosphere
Protective ozone layer is recovering but not over populated areas

CFCs and the other gases were banned under an worldwide agreement, the Montreal Protocol, and since then parts of the layer have been recovering, particularly at the poles.

Despite these increases, measurements show that the total ozone column in the atmosphere has remained constant, which experts took as a sign that ozone levels in the lower stratosphere must have declined.

During the study, the researcher's team detected that Ozone layer in the stratosphere is not recovering as expected, between 60 N and 60 S. "The decreases in ozone are less than we saw at the poles before the Montreal Protocol was enacted, but UV radiation is more intense in these regions and more people live there", informed Haigh.

THE ozone layer is continuing to decline in certain areas of the world, scientists have found.

Trump touts economy as market tanks
Trump boasted the rise of the stock market both on Twitter and in his recent State of the Union address. They went wall to wall with coverage of the stock market declining.

The other is that very short-lived substances (VSLSs), which contain chlorine and bromine, could be destroying ozone in the lower stratosphere. Another reason may be an altered pattern of atmospheric circulation caused by climate change, which is leading to more ozone to be carried away from the tropics. The latter includes chemicals used in solvents, degreasing agents, and paint strippers. "Although the Montreal protocol has done what we wanted it to do in the upper stratosphere, there are other things going on that we don't understand", Haigh said.

It was thought that very short-lived substances would not persist long enough in the atmosphere to reach the height of the stratosphere and affect ozone, but more research may be needed. These chemicals could so far have been "an insufficiently considered factor in the models", said Ball.

"The study is in lower to mid latitudes, where the sunshine is more intense, so that is not a good signal for skin cancer", said Prof Joanna Haigh at Imperial College London, a member of the global research team.

Today's publication combines the datasets of multiple worldwide teams, connecting information from various satellite missions since 1985.

4 magnitude natural disaster strikes off Taiwan, toppling at least 4 buildings
Officials from Hualien fire department said 28 people had been rescued from the hotel and a residential building. Taiwanese media reported that a separate hotel known as the Beautiful Life Hotel is tilting.

With the help of global climate models, the scientists now want to investigate the causes behind the continuing lower stratospheric ozone decline.

The study was the work of researchers from Switzerland, the United Kingdom, the U.S., Sweden, Canada and Finland, and included data from satellite missions, including by NASA.

Google Activates Pixel Visual Core For Pixel 2 Phones, Third-Party Apps
We wanted to make sure we improved on all aspects - not only image quality, but performance and power. The custom SoC is built by Google and allows for faster, low-power image processing.

Recommended:

  • Who would you pick in a combined France-Ireland XV

    Who would you pick in a combined France-Ireland XV

    Because I can't deal with the "Ja, that's what happens when you play an inexperienced flyhalf" comments if he doesn't... The match is being officiated by Nigel Owens , the Welshman who refereed the 2015 World Cup final.
    Bitcoin continues its downhill slide, dropping below $7K

    Bitcoin continues its downhill slide, dropping below $7K

    The move was followed by the same decision from American giants Bank of America, JP Morgan Chase and Citigroup. Threats from China and India The digital currency world has been plagued by a string of worrying headlines.
    KGI: Intel could be the exclusive LTE modem supplier for 2018 iPhones

    KGI: Intel could be the exclusive LTE modem supplier for 2018 iPhones

    That may be so, but the fact is demand for iPhone X cooled quickly before Christmas, as several market observers have pointed out. Kuo said in a research note to investors that Qualcomm would "not have a share of the orders at all".
  • No discussions to fire Rosenstein: White House

    No discussions to fire Rosenstein: White House

    The memo alleges that Rosenstein approved at least one FISA warrant of a former Trump campaign adviser, Carter Page. Comey did not pledge loyalty, and after a few additional tense interactions with Trump, he was sacked in May 2017.
    Nuclear plan: China accuses United States  of 'Cold War mentality'

    Nuclear plan: China accuses United States of 'Cold War mentality'

    Critics, on the other hand, said Kono's words highlighted Japan's dependence on the United States nuclear umbrella. Iranian president Hassan Rouhani said the USA was "talking about new weapons to threaten or use against rivals".
    All smiles in England Six Nations camp

    All smiles in England Six Nations camp

    Italy's ongoing endeavour was rewarded when Mattia Bellini touched down after England were exposed out wide for a second time. Italy thought they had hit back with a try from Boni but his score was ruled out on video review for a forward pass by Allan.
  • Twitter reacts to Jack's heartbreaking death on 'This Is Us'

    Twitter reacts to Jack's heartbreaking death on 'This Is Us'

    Rebecca drops the kids off at Miguel 's ( Jon Huertas ) and they head into the hospital to get the damage checked out. Rebecca takes this opportunity of relief to leave his room and make a few phone calls to nearby hotels.
    President Trump to promote tax overhaul in Cincinnati Monday

    President Trump to promote tax overhaul in Cincinnati Monday

    On Monday, while walking towards "Marine One", Melania seemed to have again swatted away President's hand. First Lady Melania Trump , 47, flew to Cincinnati in OH to visit Cincinnati Children's Hospital.
    Health department offering free flu shots in Hampton

    Health department offering free flu shots in Hampton

    The heavy flu season has also put a strain in places on some medical supplies, including IV bags, and flu medicine. The district says the flu vaccine is your best way to protect yourself and people around you from the flu.
  • Snap Revenue Surges 72% on User Growth, Advertising Gains

    Snap Revenue Surges 72% on User Growth, Advertising Gains

    The business had revenue of $207.90 million during the quarter, compared to analysts' expectations of $236.71 million. Spiegel said early feedback shows the redesign makes the app easier to user, "especially for older users".
    Maldives top court's U-turn: revokes order to release political leaders

    Maldives top court's U-turn: revokes order to release political leaders

    India issued an advisory to its nationals yesterday, asking them not to undertake non-essential travel to the island nation. President Yameen ordered the arrest of Chief Justice Abdulla Saeed and another judge, Ali Hameed, on Monday.
    Zverev Beats Kyrgios To Lead Germany Into QFs

    Zverev Beats Kyrgios To Lead Germany Into QFs

    Kyrgios appeared to be struggling with a right elbow ailment, taking a time-out for treatment while leading 4-3 in the second set. Kyrgios - who had won six of his past seven rubbers - now has a 9-6 Cup singles record while Zverev improved his tally to 3-4.


Popular

Woman wins $559M lottery and wants to stay anonymous
Lottery officials say the integrity of the game depends on the public identification of its winners as a protection against fraud. The New Hampshire resident says she made a huge mistake and hasn't turned in the ticket yet. "The disclosure of Ms.

Drake Makes Surprise Visit to a Miami High school and Donates $25K
When the rapper left campus, students crowded around the motorcade and chased it down Miller Drive, The Miami Hurricane reported. Student Destiny Paris detailed her good fortune on Instagram, explaining how Drake surprised her with the generous gift.

Wells Fargo told to halt expansion
It projected profits might be cut by as much as $400 million, or less than 2 percent of last year's $22.2 billion of net income. A former investment banker, Powell will be the first Fed chairman in 40 years who doesn't have a PhD in economics.

Tietjins: Lessons learned from Hamilton Sevens loss
It was Olympic Champions against World Series Champions and this time the Olympic Champions triumphed. Head Coach Gareth Baber said they would continue the hard work.

Justin Timberlake doesn't want son to play football
I think Vegas has a lot of odds on it. "It's gonna be a lot of fun". "I like to make dance music, so I hope everyone is dancing". Timberlake's response: "Go Pack, go".

Blood bath in the markets, Sensex sheds 770 points
Of the 30 shares that make up the Sensex, 27 ended with losses, led by Bajaj Auto and Bharti Airtel. The BSE Smallcap index fell 4.65% to 17,847.53, the most since November 2016.

José Izquierdo's stunning strike lights up Brighton against tired West Ham
The PFA issued a statement , reading: "The PFA strongly condemn any such views and there is no place for them in football ". " Our action follows a full and thorough investigation ", the club said . "It's nothing racist at all".

Mueller to interview former spokesman of Trump legal team
US intelligence agencies have determined that Moscow worked to sway last year's election towards Trump. Every one of his friends and advisers is now a potential witness in Mueller's investigation.

Designate Moe backs Notley in BC pipeline dispute
Nenshi said the B.C. government needs to do a better job of reviewing the federally approved project. Notley gave few details on what the suspended energy talks were about, but Blake Shaffer at the C.D.

Analyst Stance On Two Stocks: Valero Energy Corporation (VLO), CA, Inc. (CA)
Shares repurchase programs are typically an indication that the company's board of directors believes its shares are undervalued. Willingdon Wealth Management acquired a new position in shares of Valero Energy during the 3rd quarter worth about $100,000.