Earth’s Protective Ozone Layer Is Reportedly Healing, Says UN Report

09 Novembre, 2018, 11:02 | Auteur: Therese Cote
  • Antarctic ozone layer is healing

The depletion of the amount of ozone in the atmosphere has been observed since the late 1970s and resulted in a global phase out of various chemicals spearheaded by the 1987 Montreal Protocol. But it could have been worse given that colder-than-average temperatures created the ideal conditions to destroy the ozone in the Antarctic stratosphere, NOAA reported.NOAA and NASA scientists credit the Montreal Protocol for preventing the hole from growing. While the report doesn't speak relative to other potentially hazardous substances, however, it becomes clear that the ozone layer and its protection are still at a high enough level of priority to environmental protection worldwide.

Earth's protective ozone layer protects us from ultraviolet rays which cause skin cancer, crop damage and other problems.

The region of the ozone layer protecting the northern hemisphere and the mid-latitudes is expected to completely heal by the 2030s.

The emission of pollution containing chemicals such as chlorine and bromine has caused the ozone layer to deplete.

The study showed a rate of recovery in the region of 1 to 3-percent since the year 2000.

"These new assessment results highlight the importance of continued long-term monitoring of HFCs (the hydrofluorocarbon chemicals used for cooling and refrigeration) in the atmosphere as the Kigali Amendment begins to take hold", David Fahey, co-chair of the Montreal Protocol Scientific Assessment Panel, said. It's a big deal since 10 percent of the upper ozone layer was gone in the 1990s, Newman told CNBC.

Europa League: Sarri criticizes Chelsea players after 1-0 win over BATE
Maurizio Sarri has had Chelsea playing some exciting football this season, with his new attacking style of play. It hasn't really gone to plan so far, with the midfielder having started no games in the Premier League.

Delightful First Trailer for Laika's New Stop-Motion Film 'Missing Link'
The way that Laika combines stop-motion craftsmanship with digital technology continues to be unique within the industry. As sometimes happens, the USA trailer - also released today - gives a slightly different look at the film.

Pas de supporters stéphanois pour le derby — ASSE
La décision est tombée: les supporters de l'ASSE ne pourront pas se rendre officiellement à Décines, le 23 novembre pour le derby. Le club attend de recevoir la notification de cette sanction pour en connaître les motivations et décider d'un éventuel appel.

However, while most of the banned gases have been phased out, the report found at least one violation of the protocol: an unexpected increase in production and emissions of CFC-11 from eastern Asia since 2012.

The ozone layer is showing signs of continuing recovery from man-made damage and is likely to heal fully by 2060, new evidence shows.

Scientists don't know how much a healed ozone hole will further warm Antarctica, but they do know the immediate effects of ozone depletion on the world and human health, so "it would be incredibly irresponsible not to do this", Salawitch said.

The replacements that are now being used to cool cars and refrigerators have to be replaced themselves with some chemicals that will not be worsening the global warming.

The 2018 Assessment is the latest in a series of assessments prepared by the world's leading experts in the atmospheric sciences and under the auspices of the Montreal Protocol in coordination with the World Meteorological Organization and the United Nations Environment Programme (UN Environment).

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

Conseillé:



Populaire

Taxation des Gafa: Paris "ouvert à un report de l'entrée en vigueur"
Nous partageons la même analyse, il y a des difficultés techniques à résoudre, nous devons les résoudre dans les quatre prochaines semaines ", a expliqué M.

Imelda Marcos faces arrest for graft
The former First Lady of the Philippines Imelda Marcos has been found guilty of corruption and is facing up to a decade in jail. Chairperson Emeritus Etta Rosales said, "This legal victory is a two-decade struggle by the fearless Filipino people".

Families, Rejoice! Netflix Announces 6 New Animated TV Shows & Movies
The series will feature a female hero, half human and half divine, and will be set in a mythical Mesoamerican-inspired world. Silvia Olivas ( Elena of Avalor ) is co-writer and co-executive producer, and Jeff Ranjo ( Moana ) is head of story.

Who is Ian David Long, the suspected Thousand Oaks bar shooter?
Officers speculated Long, who had served in Afghanistan for seven months, was suffering from post-traumatic stress disorder. Earlier this year, police were called to his home after neighbors reported what officers described as a disturbance.

Luis Enrique appelle Jordi Alba !
Le joueur, actuellement en grande forme avec son club, n'avait pas été appelé lors de deux derniers rassemblements. En revanche Marcos Alonso, Albiol, Bartra, Koke et Paco Alcácer ne font pas partie de la liste.

Danse avec les stars déprogrammée samedi : quand regarder le prochain prime?
Lors de la cérémonie, David Hallyday rendra notamment hommage à son père Johnny Hallyday avec une chanson inédite. Cette semaine, TF1 diffuse le prime de façon exceptionnelle ce jeudi soir à 21 heures, au lieu de samedi.

Cricket Australia To Consider Revoking Ban on Smith & Warner
As India's tour looms large, if the bans on Smith and Warner are indeed lifted, it could have significant repercussions on the series.

Pacific $2b fund in foreign policy shift
A further $US700 million will go to state export financing agency Efic, to support Australian businesses operating in the Pacific.

Mort d’une fillette de 4 ans après une opération des amygdales
Sur le plan humain, les personnels soignants de notre établissement sont profondément bouleversés par la situation . D'après les informations de L'Alsace , la fillette avait été victime d'un arrêt cardiaque après l'intervention.

Gigi Hadid & Kendall Jenner Head to Victoria's Secret Fashion Show Fittings
Shawn Mendes was in heaven at the 2018 Victoria's Secret Fashion Show . The fashion show will tape this week and will air on December 2nd.