Banned Ozone-Destroying Gas Back on the Rise, Warn Scientists
18 May, 2018, 10:00 | Author: Dwayne Harmon
The study, which was published in Nature on Wednesday, suggests that new production of the chemical is being carried out by an identified source in East Asia.
However, according to Durwood Zaelke, an expert on the Montreal Protocol, the massive quantities of CFC-11 indicates that someone is acting in defiance of the ban.
When, in 1987, in Antarctica a hole in the ozone layer, all countries of the world in 1987 agreed to phase out several types of ozone-depleting chemicals called chlorofluorocarbons (CFCs). The CFC-11 was used previously as a solvent, refrigerant, and as a propellant for Styrofoam production and for aerosol spray cans. It's the first time ranges of one of many three most plentiful, long-lived CFCs has elevated for a sustained interval because the late 1980s. Still found in some old freezers, it was supposed to be completely out of production by 2010.
It's unclear who's responsible for the increase of the chemical into the atmosphere, where it can last 50 years.
All Montzka would say about that is "further work is needed to figure out exactly why emissions of CFC-11 are increasing, and if something can be done about it soon".
Despite having been banned, emissions of a chemical found to create holes in the ozone layer have skyrocketed in recent years, according to a new study-leading scientists to wonder whether the pollutant is being secretly manufactured somewhere on Earth. Afterward, however, the decline actually started to slow down: between 2015 and 2017, CFC-11 levels in the atmosphere dropped by only 1.0 ppt per year. As they do, we should see the decline of CFC-11 levels in the atmosphere accelerate.
Guatemala opens doors to new embassy in Jerusalem
In appreciation to Guatemala for moving its embassy to Jerusalem , the Old City walls were illuminated with the country's flags. Turkish president Recep Tayyip Erdogan dramatically ratcheted up his rhetoric this week over Gaza and the U.S. embassy move.
A simple model analysis of our findings suggests an increase in CFC-11 emissions ... despite reported production being close to zero4 since 2006 ... Production levels have been reported to be at zero by countries that are responsible to enforce the worldwide ban, notes the report.
Because CFC-11 still accounts for one-quarter of all chlorine present in today's stratosphere, expectations for the ozone hole to heal by mid-century depend on an accelerating decline of CFC-11 in the atmosphere as its emissions diminish- which should happen with no new CFC-11 production.
"We're raising the flag to say, look, this is not what we hope happens for the ozone layer", said Dr. Montzka, a research chemist at the Earth System Research Laboratory in Boulder, Colo., a part of the National Oceanic and Atmospheric Administration.
The staff mentioned the emissions have been nearly definitely as a result of new, unreported manufacturing from an unidentified supply in East Asia.
Montzka is calling for prompt action, as the damage will be minor only if the culprit is detected and shut down soon. If not remedied soon, however, substantial delays in ozone layer recovery could be expected, Montzka said.
Qualcomm's sensors are also said to be able to work when wet or greasy, unlike the more conservative sensors seen in phones today. We are using new Honor 10 for one week and believe us we have quite surprised with camera capabilities of this new android phone.
Quick video trimming: If you capture a clip with Xbox One, you can now trim its length without having to open a separate app. This may look like a small implementation but one thing's for sure, we'll use that one all the time.
With the genre becoming ever more popular, it was inevitable that even a Marvel character would poke fun at it. All in all, " Deadpool 2 " delivers exactly what you would expect- comedy, action, and an overall good time.
Cops and senior prank week don't usually go well together. "This prank included absolutely no damage at all to school property". Seniors "crashed" a auto into their school and mocked up the scene complete with yellow police tape and cast off bricks.
YouTube have confirmed with USA Today that Google Play Music will eventually be phased out and replaced by YouTube Music . Basically, under the new pricing system, there's no way to subscribe alone to premium video content alone.
Half of the encounters were children ages 15-17, 37 percent were children ages 12-14, and 12.8 percent were children ages 5-11. A little under 60% of these encounters resulted in hospitalization and of these, about 13% required intensive care.
While it is a mandatory festival dress code that all female guests wear heels, it has been condemned many a time as sexist. Away from the footwear controversy, the screening attended by Kristen Stewart proved to be a success story at Cannes .
Treasury note yield held well above 3 percent after bursting through key technical levels on Tuesday. League leader Matteo Salvini said on Wednesday that he was not intimidated by a rise in bond yields.
Gilstrap-Portley was discovered when a former coach identified him as a player at North Mesquite High School earlier this decade. A 25-year-old man was arrested for pretending to be a student while playing for a high school basketball team.
Call of Duty Black Ops 4 Blackout Battle Royale Mode Announced
There will be three Zombies mode maps that will be available to play at launch: IX, Voyage of Despair and Blood of the Dead . There are no more exoskeletons, and wall-running/boost-jumping do not present themselves as mobility options in the game.
NJ school bus collision leaves 2 dead, some critically hurt
NY reports that the bus came from East Brook Middle School in Paramus, a public school serving roughly 650 students in grades 5-8. Mount Olive Mayor Rob Greenbaum, who saw the aftermath of the highway crash from an overpass, described the scene as "horrific".
Walmart's Q1 Ecommerce Sales Rebound
In 2016, Walmart acquired Jet.com, a grocery delivery service that targets younger and more urban shoppers, for $3.3 billion. Following the Flipkart-Walmart deal, eBay also made a decision to end its strategic partnership with Flipkart .
Watch The Racist Lawyer Cowardly Run Away From Cameras
During the confrontation with the ultra-Orthodox protesters, he bragged about having traveled to Israel twice . "We found Mr. Adriano Espaillat (ah-dree-AH'-noh ehs-peye-YAHT') and Bronx Borough President Ruben Diaz Jr . called the video "vile".
Lando Calrissian Spinoff May Be Next in STAR WARS Universe
Alden Ehrenreich beat out tough competition to land the coveted role, made famous by Harrison Ford in 4 Star Wars movies. I mean, how can he not be? "There's a fluidity to Donald and Billy Dee's [portrayal of Lando's] sexuality", he adds.
FDA Approves Non-Opioid Treatment for Opioid Withdrawal
The national opioid epidemic has put a spotlight on the need for more treatments for pain, withdrawal symptoms and addiction . Additionally, an independent FDA advisory committee supported the approval at a meeting in March.
Best-selling author Tom Wolfe dies at 88
Born in Richmond, Virginia, on March 2, 1930, Wolfe was a star baseball player at his high school and also edited its newspaper. A pioneer of new journalism , Wolfe wove ornate tapestries through his fervent prosaic style and vivid storytelling techniques.