Rise in ozone-depleting CFC gases traced to China

23 Mai, 2019, 08:36 | Auteur: Anatole Charbonneau
  • Earth seen from the International Space Station

"A recently reported slowdown in the decline of the atmospheric concentration of CFC-11 after 2012, however, suggests that global emissions have increased", the study explains.

That deal agreed that the chemicals, used as a coolant in refrigerators and to make styrofoam and other products, would be phased out by 2010.

"Our measurements show spikes in pollution, when air arrives from industrialized areas".

Tough European Union environment rules make it illegal to discard fridges containing CFCs.

Ever since the ban, the concentration of the chemical in the atmosphere has been steadily declining but previous year startled scientists discovered that the pace of that slowdown dropped by half from 2013 to 2017. Because the chemical is not naturally occurring, the change could only have been produced by new emissions.

There were indications that some region in eastern Asia was still emitting thousands of tonnes of CFC-11, but the exact location was not known.

A report previous year by the UK-based non-profit Environmental Investigation Agency, said it had collected evidence from 18 companies in 10 Chinese provinces that showed use of CFC-11 is "widespread and pervasive" in factories that make insulation foam for buildings.

Suspicions were strengthened when authorities subsequently shut down some of these facilities without explanation.

Adidas, Nike, Puma say new tariffs on China would be ‘catastrophic’
No further trade talks between top Chinese and United States negotiators have been scheduled since the last round ended on May 10. When he raised tariffs earlier this month, Mr Trump told companies that they could reduce costs by shifting production to the US.

WashPost: Trump Lawyer Told Cohen to Lie About Trump Tower Moscow Plan
Those transcripts have yet to be released publicly, as they were sent to the intelligence community for a declassification review. Democrats have pointed to Cohen's testimony as a need to further investigate the President, his businesses and his team.

Karolina Pliskova powers past Johanna Konta to take Rome title
Johanna Konta , ranked 47th in the world, has enjoyed a fairy-tale run to the Australian Open semifinals. Pliskova looks to win her second title of the year and her 13th title of her career.

The global team of scientists from the UK, South Korea, Japan, the US, Australia and Switzerland who conducted the study have published their latest findings in the journal Nature.

The team also ran computer simulations that confirmed the origin of the CFC-11 molecules.

"We did not find evidence of increased emissions from Japan, the Korean peninsula or any other country", added Luke Western, a post-doctoral researcher at the University of Bristol.

The surge in emissions of chlorofluorocarbons, which were banned under the Montreal Protocol of 1987, was reported a year ago.

NASA combination images showing areas of low ozone above Antarctica in 2000, left, and 2018, right. "If emissions do not decline, it will delay the recovery of the Antarctic ozone hole, possibly for decades", said Paul Fraser, an honorary fellow the CSIRO Climate Science Centre in Australia.

"Increased emissions of CFC-11 are of concern because it is a powerful ozone-depleting chemical". When the ozone layer is weakened, more UV rays can get through and affect humans, making them prone to skin cancer, cataracts and other diseases.

And it's slowing down the rate of recovery for the hole in the crucial ozone layer. But a study past year found that the ozone layer was unexpectedly declining in the lower stratosphere over the populated tropical and mid-latitude regions.

That study identified two possible culprits: industrial chemicals not covered by the Montreal Protocol called "very short-lived substances" (VSLSs), and climate change.



Roger Goodell Breaks Silence On Tyreek Hill Controversy
Local police elected to re-open the investigation into Hill and Espinal in the wake of the audio clip's release. Hill is being investigated for child abuse of his son and is not with the Chiefs for offseason workouts.

Huawei OS reportedly 'far from ready' after Android ban
The ban would also fall heavily on Huawei's MateBook line of laptops, which use US-made chips and Microsoft's Windows. There is, of course, the possibility of sideloading Android apps into your Huawei device.

FCN : Le terrible témoignage d'Emiliano Sala contre les Kita
Mais un élément a fait pencher la balance: " D'un autre côté, je ne veux pas parler avec Kita car je n'ai pas envie de m'énerver. Lui, aujourd'hui, il veut me vendre à Cardiff car il a fait une super négociation, il va rentrer l'argent qu'il veut.

Deutsche Bank Flagged Trump, Kushner Transactions
The Senate of the University of Cape Town in South Africa has deferred a vote on a boycott of Israeli academic. The bank also told the Times it had increased its scrutiny of potential money laundering.

Shanahan says after Iran briefing US deployment has deterred attacks
Bolton said that this was "i$3 n response to a number of troubling and escalatory indications and warnings" from Iran. The US has warned in recent weeks of a threat from Iran but has not given any details.

Elizabeth Olsen Recalls Her 'Awkward' 'Game of Thrones' Audition
Olsen shared: "When I first started working, I just auditioned for everything, because I like auditioning". How do you think Elizabeth Olsen would have fared as the Mother of Dragons? Emilia, I love you.

British chef Jamie Oliver's restaurant chain to enter administration
Oliver said he was "devastated" and "deeply saddened" by the bitter pill. "And we did exactly that". Global outlets, such as those in Hong Kong, Singapore and Thailand, will continue to trade.

Un nouvel opus annoncé par Codemasters — GRID
GRID est une série que notre communauté adore, et nous sommes très heureux de la porter sur les consoles de nouvelle génération. Egalement, une Edition Ultimate, comprenant les 3 premières saisons du jeu sera disponible à l'achat prochainement.

Call him Abe Shinzo, not Shinzo Abe, Japan asks the world
But Japan Sports Agency Commissioner Daichi Suzuki said that the public should be consulted before the move. With a change in naming conventions, decluttering guru Marie Kondo could be referred to as "Kondo Marie".

Cavaliers hire J.B. Bickerstaff as associate head coach
He then became the associate head coach for Memphis before becoming the interim coach in 2017 and then the head coach last season. Bickerstaff was a hot commodity in the coaching carousel this spring because of his experience as a head coach.