Ozone layer hole will 'totally heal within 50 years'

Ozone layer hole will 'totally heal within 50 years'

This combination of images made available by NASA shows areas of low ozone above Antarctica on September 2000, left, and September 2018 GENEVA: The ozone layer that shields life from cancer-causing solar rays is recovering at a rate of one to three percent per decade, reversing years of risky depletion caused by the release of harmful chemicals, a United Nations study said on Monday.

The measures taken to fix the damage will also have an important beneficial effect on climate change, as some of the gases that caused the ozone layer to thin and in places disappear also contribute to warming the atmosphere. Levels were found to be reduced in the 1980s, caused by chlorofluorocarbons (CFCs) and halons, gases used in spray cans, fridges and insulation.

Durwood Zaelke, president of the Institute for Governance and Sustainable Development, said: "Over the last three decades, the Montreal protocol has fulfilled its original objective to heal the ozone layer".

The earth's protective ozone layer is well on track to recovery, thanks to worldwide efforts against ozone-depleting substances.

"The Antarctic ozone hole is recovering, while continuing to occur every year".

Paul Newman of Nasa, joint chairman of...

Scientific evidence of the depletion of the ozone layer over the Antarctic was first presented in 1985, and in 1987 the Montreal protocol was signed, binding world governments to reduce and phase out the harmful chemicals identified as causing the problem. "It shows that the ozone layer is under fix, and highlights areas that must be strengthened for it to be an equally successful platform to phase out HFCs to limit global warming", said Shikha Bhasin, programme lead, Council on Energy, Environment and Water (CEEW).

More news: Tesla overlooks James Murdoch for chairman role vacated by Elon Musk
More news: Prince Charles, Duchess Of Cornwall In Nigeria for a 3-Day Visit
More news: A Breaking Bad film is coming

And if recovery rates continue as they are predicted to do, the report says the Northern Hemisphere and mid-latitude ozone should be fully recovered by the 2030s, the Southern Hemisphere ozone in the 2050s, and the polar regions before 2060.

The University of Colorado's Brian Toon, who wasn't part of the report, said the success doesn't mean the fight to save the ozone layer is over just yet.

If nothing had been done to stop the thinning, the world would have destroyed two-thirds of its ozone layer by 2065, Newman said.

"We are only at a point where recovery may have started", Toon said, pointing to some ozone measurements that haven't increased yet.

However, while most of the banned damaging gases have been phased out, the study found at least one violation - having spotting that production and emission of CFC-11 unexpected increased in eastern Asia since 2012. Newman said we'll need to ensure that the replacements for these gases don't worsen global warming.

But an amendment to the Montreal Protocol is set to come into place next year which will ban the chemical.

"I don't think we can do a victory lap until 2060", Newman said.

Related Articles

  • US Democrats win House, Republicans keep Senate

    In suburban areas where key House races will be decided, voters skewed significantly toward Democrats by a almost 10-point margin. New York Democratic Governor Andrew Cuomo - sometimes spoken of as a 2020 presidential contender - cruised to a third term.
    The Democrats in the age of Trump

    The Democrats in the age of Trump

    A disproportionate number of the seats up for election were in traditionally Republican states with Democratic incumbents. The Democrats benefited from extraordinary voter enthusiasm, robust fundraising and unusually fresh candidates.
    Democrats win control of the House as Republicans take Senate

    Democrats win control of the House as Republicans take Senate

    President keeping it low key on midterm Election Day following a busy campaign season; Kevin Corke reports from the White House . Republicans maintained their strength in conservative, rural states, while Democrats made inroads across America's suburbs.
  • Mass shooting reported at bar in Thousand Oaks, California

    Mass shooting reported at bar in Thousand Oaks, California

    U.S. fire department officials have reported multiple injuries in a shooting at a bar and dance hall in southern California . Witnesses tell ABC News that a man fired several shots from a handgun before tossing smoke bombs and starting to fire again.
    Sri Lanka's Speaker: Compelled to recognize earlier government till Parliament majority proven

    Sri Lanka's Speaker: Compelled to recognize earlier government till Parliament majority proven

    Wickremesinghe who branded Sirisena's October 26 action to sack him a constitutional coup maintains that he holds majority. He claims to hold a majority in the House but was unable to hold a confidence vote as Sirisena suspended the Parliament.
    Troy Aikman calls for 'complete overhaul' of the Cowboys organization

    Troy Aikman calls for 'complete overhaul' of the Cowboys organization

    The momentum shifted, Cowboys' players acknowledged, and neither side of the ball showed any ability to recapture it. Garrett officially took over as the head coach for America's Team in 2011.
  • Irish PM sees chances fading for Brexit deal in November Reuters, Helsinki

    Irish PM sees chances fading for Brexit deal in November Reuters, Helsinki

    Britain has complained this would create a border in the Irish Sea between Northern Ireland and the rest of the United Kingdom. Britain leaves the EU on March 29, but a deal must be sealed in the coming weeks to leave enough time for the U.K.
    First ever Muslim women elected to Congress following U.S.  mid-term elections

    First ever Muslim women elected to Congress following U.S. mid-term elections

    The Palestinian-American Muslim ran under the Democratic Party, having previously served six years in the state legislature. Researchers found that people identifying as Republicans were most likely to hold negative ideas about Islam and Muslims.
    Jack White slams security for stopping lesbian kiss at gig

    Jack White slams security for stopping lesbian kiss at gig

    He rounded off the post by urging fans, "Let's promote love and acceptance wherever and whenever we can". See the photo and White's full statement below.
  • Various Business Twitter Accounts Hacked By ‘Elon Musk’

    Various Business Twitter Accounts Hacked By ‘Elon Musk’

    Pathé Films, which was hacked , was able to get the control back after some time and deleted the tweet . It is, however, something rather amusing in the fact that they did decide to use Elon Musk for this.
    Dez Bryant signs with Saints

    Dez Bryant signs with Saints

    Bryant's return to the National Football League with the Saints means he could play against his former club in a few weeks. In his eight-year career, all with the Cowboys, Bryant has amassed 7,459 yards on 531 receptions and 73 touchdowns.
    Former ‘Ultimate Fighter 20’ Hopeful Sharice Davids Elected to Congress

    Former ‘Ultimate Fighter 20’ Hopeful Sharice Davids Elected to Congress

    There are around three million Native Americans in the United States or around one percent of the population. They were granted the right to vote in 1962, almost 40 years after they were granted citizenship.