Ozone Hole Smallest in Recorded History

The blue and purple areas indicate the hole in the ozone layer.                  NASA  NASA Ozone Watch  Katy Mersmann

Scientists from NASA and the National Oceanic and Atomospheric Administration (NOAA) have noted that a hole in the Earth's ozone layer that forms over Antarctica each September due to warm air was the smallest this year since 1988.

According to NASA, the ozone hole reached its peak on September 11 which covered nearly an area about two and a half times the size of the United States.

Previous year saw the smallest ozone hole on record for this same reason.

"In the past, we've always seen ozone at some stratospheric altitudes go to zero by the end of September", said Bryan Johnson, an atmospheric chemist with NOAA.

Its maximum value the size of the hole in the ozone layer reached 11 September this year, when in Antarctica ended the winter season. "This is a year in which the weather conditions led to better ozone (formation)". A Dobson unit is defined as the number of ozone molecules required to create a.01mm-thick layer of pure ozone at a temperature of 32 degrees Fahrenheit (0 degrees Celsius) at an atmospheric pressure equivalent to that at ground-level.

Preity Zinta says she was fortunate enough to meet Dina Wadia
It mentioned that the father-daughter relationship "never deepened" after her marriage to Neville Wadia at the age of 17. Her mother was a member of two of the elite class families of Bombay, the Petit-Tata family.

The treaty, known as the Montreal Protocol, has also helped save millions of lives, in addition to reducing the size of the hole. In the upper atmosphere, the ozone layer shields the planet from potentially harmful UV rays that can cause skin cancer, damage crops and contribute to other health issues. NASA says the smaller hole "is due to natural variability and not a signal of rapid healing".

The formation and persistence of these clouds are important first steps leading to the chlorine- and bromine-catalyzed reactions that destroy ozone, scientists said.these recent Antartic conditions resemble those found in the Arctic, where ozone depletion is much less severe.

The largest ozone hole was in 2000 - 29.86 million square kilometers.

NASA says researchers expect the hole to return to 1980 levels by around 2070. The agencies use satellites, weather balloons and ground-based instruments to study and track the hole.

Each year, the hole reaches its peak in September and begins to shrink after mid-September. A lack of these clouds is one of the reasons why the ozone layer recovered strongly.

Related News:

Most liked

Iowa stuns Ohio State with blowout victory
Ohio State entered Saturday in pretty solid shape to make its third College Football Playoff in four years. Campbell leads a versatile Buckeyes pass-catching corps in receiving yards (410) and has two touchdowns.

Rodgers Hasn't Given Up On A 2017 Return
Rodgers then underwent surgery and was placed on injured reserve , which made him eligible to return after eight weeks. The Green Bay Packers have activated linebacker Vince Biegel from the reserve/physically unable to perform list.

'Kamal Haasan Should be Shot Dead or Hanged'
His defense came a day after the Akhil Bharatiya Hindu Mahasabha said that Kamal Haasan and likes of him "should be shot dead". He further wrote, "The right-wing can not challenge anyone asking the question: show me, one Hindu terrorist".

Sarah Hyland Confirms Bisexual Rumors, Brings Fans To Tears
Us Weekly confirmed that the two have been "seeing each other for months," but keeping their relationship on the down low. People notes that neither the show's writers, nor co-creator Steve Levitan, have responded to Hyland's declaration.

Effingham Kmart store to close
Tilghman St.in South Whitehall Township and 2520 MacArthur Road in Whitehall Township are both scheduled to close this month. Through Thanksgiving weekend, Sears will offer up to 50% off everything and Kmart will offer up to 40% off everything.

Cowboys Owner Jerry Jones to Be Deposed in Colin Kaepernick Collusion Lawsuit
That ESPN story said Kraft "politely rebuked" hard-line owners who were demanding that all players stand for the anthem. What began with Kaepernick kneeling has spread throughout the NFL and has made its way into other leagues.

JR Smith Dismisses Claim Cavaliers Tanked to Avoid Wizards in Playoffs
We just had a bad rut like we just did [this season]". "I think his impact and the way he was coming kind of gave me a stinger". Do you smell blood with the way the Cavs are playing right now? "We know what type of team we are", Smith said.

Bush Sr and Jr openly condemn Donald Trump
Bush says he is not too excited about " blowhard " President Trump and confirmed in a new book that he voted for Hillary Clinton . He indicated that a president should not "exploit the anger, incite it" but rather "come up with ideas to deal with it".

Kevin Spacey Receives More Accusations From House of Cards Staff
We will continue to work with MRC during this hiatus time to evaluate our path forward as it relates to the show. His career lies in ruins, and he is also subject to police investigations in London , Los Angeles , and NY .

Guru Nanak Jayanti celebrated with religious fervour
The first of the faith's 10 spiritual leaders, he devoted his life to promoting equality, altruism, tolerance and compassion. He is the first Guru of the Sikh religion and the Sikh people follow all the teachings of the Guru Nanak.

Interest rate rise puts pressure on 400000 families to cut spending
The move comes as the Bank looks to dampen Brexit-fuelled inflation, which it predicts will peak at around 3.2% this autumn. The official bank rate has been lifted from 0.25 per cent to 0.5 per cent, the first increase since July 2007.

Kohli becomes 2nd highest run-getter in T20Is
Virat soon got to his 18th fifty in T20i's but the scoreboard pressure got the better off him as he got on 65 runs off 42 balls. India are coming into the match with one change in their playing XI with pacer Mohammed Siraj comes in place of Nehra.

Kentucky police arrest man for assaulting Senator Rand Paul at home
Boucher is employed as an anesthesiologist, reports The Heavy , who graduated from Des Moines University College of Osteopathic. WAVE 3 News was also able to confirm Boucher was a registered Democrat, but that registration in Rhode Island was canceled.

Health care enrollment effort here
Total yearly out-of-pocket expenses for these plans can't exceed $6,550 for individual policies or $13,100 for family policies. The Smart Planfinder on the Exchange's HealthPlanFinder website, helps connect customers with plans that best fit their needs.

Prosecutors bid to more than double Oscar Pistorius prison term
Judge Thokozile Masipa cited a number of mitigating factors in her reasoning behind giving the 30-year-old a six-year sentence. The legal push was made in earnest yesterday to increase Pistorius' jail time for the murder of girlfriend Reeva Steenkamp.