techkenyot.com
techkenyot.com November 17, 2018


Earth's protective ozone layer is finally healing

08 November 2018, 06:39 | Edward Lowe

Image The ozone layer of the atmosphere will be repaired by 2030

The ozone layer of the atmosphere will be repaired by 2020

Image copyright Antartica What does the ozone layer do?

The ozone layer had been depleting since the late 1970s.

The results, presented on Monday in a four-year assessment of the health of the ozone layer, represent a rare instance of global environmental damage being repaired, and a victory for concerted global action by governments.

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.

The ozone layer is a layer of the atmosphere which sits about 10 kilometres above the Earth's surface and protects life from ultraviolet radiation from the Sun. Recent reports have found that emissions of a banned CFC are increasing in China - something the Chinese government has vowed to crack down on.

England flanker Tom Curry to miss November Tests
He had been in line for a first global appearance in two years against South Africa last weekend but was forced to withdraw before England's 12-11 victory.

The Montreal Protocol was finalized in 1987 in response to the realization that numerous chemicals used in aerosols, air conditioning systems, refrigerators, and industrial solvents were eroding the planet's stratosphere, creating a hole and allowing harmful levels of ultraviolet radiation to seep through the ozone layer.

"It's really good news", said report co-chairman Paul Newman, chief Earth scientist at NASA's Goddard Space Flight Center. The Southern Hemisphere lags a bit and its ozone layer should be healed by mid-century.

This year, the ozone hole over the South Pole peaked at almost 9.6 million square miles (24.8 million square kilometers).

The report also said it was the first time the hole in the ozone layer had shrunk in both size and depth and size since 2000.

The ozone layer starts at about 6 miles (10 kilometers) above Earth and stretches for almost 25 miles (40 kilometers); ozone is a colorless combination of three oxygen atoms.

Justin Rose returns to world number one spot with win in Turkey
The tournament - hosting 78 players for the competition - was held on November 1-4 at the Regnum Carya Resort. Li is looking for his second win of the year following the Omega Dubai Desert Classic.

The report shows that the Antarctic ozone hole is recovering, while continuing to occur every year.

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.

An amendment to the Montreal Protocol that goes into effect next year would cut use of some of those gases.

On its own, the ozone hole has slightly shielded Antarctica from the much larger effects of global warming - it has heated up but not as much as it likely would without ozone depletion, said Ross Salawitch, a University of Maryland atmospheric scientist who co-authored the report.

But the United Nations has today said it is finally healing, with the Northern Hemisphere's upper ozone layer expected to be repaired in the 2030s. Newman said we'll need to ensure that the replacements for these gases don't worsen global warming.

Super Smash Bros. Ultimate Demo Rolling Out To Best Buy Kiosks
When he uses it, he transforms into a stereotypical Indian wearing a loincloth and feather, and he attacks with a flaming torch. The floodgates are closed, it seems, but that doesn't take away the fact that Super Smash Bros . "It means the world".



Other News

Trending Now

World Update, 'Morning people' have lower breast cancer risk
The findings have been published on researchers' website bioRxiv but have not yet gone through scientific peer review. The scientists found that those with an in-built morning preference were 40% to 48% less at risk of breast cancer .

News PUBG PS4 Evidence Continues to Mount
That's not the only reason PUBG is in the news today though, as Microsoft has been tweeting about their X018 event at the weekend. PUBG was at the top of the gaming food chain when it released the early access of the game on Xbox One previous year in December.

Troy Aikman: Cowboys Organization Needs a "Complete Overhaul"
The momentum shifted, Cowboys' players acknowledged, and neither side of the ball showed any ability to recapture it. In his eighth full season as coach of the Cowboys , Garrett's tenure is arguably facing its biggest test .

Harvick takes Texas to clinch championship spot
Kyle Busch , a seven-time victor this year, and defending Cup champion Martin Truex Jr . are among the other six title contenders. Harvick was on the inside again for the next restart, but Blaney was able to get by him for the lead.

New England pizza, sandwich chain closes dozens of locations | AP business
The company hasn't provided a full list of the closures and a company spokeswoman didn't immediately comment. The company said it closed 95 underperforming stores on Sunday to begin the process of restructuring.

World Wide Web inventor wants new 'contract' to make web safe
Individuals are encouraged to "respect civil discourse and human dignity so that everyone feels safe and welcome online". So the web remains open and a global public resource for people everywhere, now and in the future.

Buhari To Receive Prince Charles And Entourage By 2pm Today
NAN also reports that the Benin Monarch, Omo N'Oba Ewuare 11, had on Sunday arrived in Abuja ahead of Prince Charles' visit to Nigeria.

Rotating strikes for Canada Post hit Toronto
In recent years, said Hamilton, the corporation's parcel deliveries have seen double-digit yearly increases. So far, 90 communities have been hit with the rotating strikes since they began October 22, said Hamilton.

Trump fires US Attorney General Jeff Sessions
He did not provide a reason in his resignation letter , but praised the president for their work together. Who is the new attorney general? Mr Sessions was the first USA senator to endorse Mr Trump for president.

Ariana Grande Performs ‘thank u, next’ on ‘Ellen’
GC Images via Getty Images Ariana Grande and Mac Miller attend an Oscars after-party in 2016. The host reassured her that it was fine.