Offbeat Ozone-destroying emissions are on the rise and scientists don't know why

10:55  17 may  2018
10:55  17 may  2018 Source:   cnn.com

Solar Waves Act Like Those in Earth's Atmosphere

  Solar Waves Act Like Those in Earth's Atmosphere Chances are, there are plenty more examples of the phenomenon lurking elsewhere in the solar system.That phenomenon is called a Rossby wave, and scientists have been looking for it in the sun for decades. Now, a new study published in the journal Nature Astronomy found these waves can last several months and reach more than 1,000 miles below the sun's surface.

Banned chemicals which can cause holes in the ozone layer are on the rise , according The hunt is now on to find and stop the mysterious source of the emissions , which scientists believe "We don ' t know why they might be doing that and if it is being made for some specific purpose, or inadvertently

A man clears the debris from a destroyed convenience store in Rosalie, Ala., on Thursday, the day Scientists are seeing bigger clusters in recent years, and they're struggling to figure out what's When weather conditions are just right — lots of rising heat and moisture, and vertical wind shear

TOPSHOT - A passenger plane flies past the sun in Yangon on December 6, 2017. / AFP PHOTO / Ye Aung THU (Photo credit should read YE AUNG THU/AFP/Getty Images)© YE AUNG THU/AFP/AFP/Getty Images TOPSHOT - A passenger plane flies past the sun in Yangon on December 6, 2017. / AFP PHOTO / Ye Aung THU (Photo credit should read YE AUNG THU/AFP/Getty Images)

Banned chemicals which can cause holes in the ozone layer are on the rise, according to a new report, and no one knows who the culprit is.

The hunt is now on to find and stop the mysterious source of the emissions, which scientists believe are emanating from somewhere inside of east Asia.

Chlorofluorocarbons, or CFCs, used to be common in refrigerators, aerosol cans and dry cleaning chemicals. But they were banned under the Montreal Protocol of 1987, after it was discovered they contributed to the creation of a giant hole in the ozone layer which forms over Antarctica each September.

Solar panels may be a must for California's new homes

  Solar panels may be a must for California's new homes Up for a key vote, the widely supported regulation would require nearly all new construction to include solar powerSACRAMENTO, Calif. - California may start requiring solar panels on new homes and low-rise apartment buildings built after 2020, the first such mandate nationwide and the state's latest step to curb greenhouse gas emissions.

In 2016, environmental scientists celebrated victory in an almost-two-decade battle. The stratospheric ozone layer—a blanket of molecules made up of three oxygen atoms that protect the planet from some of the sun’s ultraviolet rays— was finally rebounding.

Scientists report that chemicals that are not controlled by a United Nations treaty designed to protect the Ozone Layer are contributing to ozone depletion. Explore further: Increase in ozone - destroying substances—but Montreal Protocol on track.

The ozone layer, a fragile shield of gas, protects animal and plant life on Earth from powerful UV rays. 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. There also may be consequences for plant life, including lower crop yields and disruptions in the ocean's food chain.

After concerted global action, the hole in the ozone layer was gradually beginning to mend, but scientists at the US National Oceanic and Atmospheric Administration (NOAA) have discovered a sharp rise in CFCs from an unknown source.

"We're raising a flag to the global community to say, 'This is what's going on, and it is taking us away from timely recovery of the ozone layer,'" NOAA scientist Stephen Montzka, the study's lead author, said in a statement.

The Latest: Hawaii volcano could have explosive eruption

  The Latest: Hawaii volcano could have explosive eruption The Latest on the eruption of Kilauea volcano in Hawaii (all times local):10 a.m.Geologists say Hawaii's Kilauea volcano could erupt explosively and send boulders, rocks and ash into the air around its summit caldera in coming weeks.The U.S. Geological Survey said Wednesday the risk will rise if the lava drops below the groundwater level beneath the summit's caldera or craterlike basin. That's because an influx of water inside could cause steam-driven explosions.The agency says the volcano may eject blocks up to two yards (meters) in diameter a little less than a mile (a kilometer) away.

Science News. from research organizations. New ozone - destroying gases on the rise ; not 12, 2017 — 'Ozone depletion is a well- known phenomenon and, thanks to the success of the 14, 2014 — Since the discovery of the Antarctic ozone hole, scientists , policymakers, and the public have

20 reasons why geoengineering may be a bad idea Carbon dioxide emissions are rising so fast that to produce this effect, additional aero-sols from geoengineering would destroy even more ozone and We don ’ t know how quickly scientists and engi-neers could shut down a geoengineer-ing

TOPSHOT - A plane overflies Bogota at sunset on September 6, 2017. / AFP PHOTO / LUIS ROBAYO (Photo credit should read LUIS ROBAYO/AFP/Getty Images)© LUIS ROBAYO/AFP/AFP/Getty Images TOPSHOT - A plane overflies Bogota at sunset on September 6, 2017. / AFP PHOTO / LUIS ROBAYO (Photo credit should read LUIS ROBAYO/AFP/Getty Images)

"Further work is needed to figure out exactly why emissions of CFC-11 are increasing, and if something can be done about it soon," added Montzka

The team said the emissions were most likely due to new, unreported production from an unidentified source in East Asia. It is the first time levels of one of the three most abundant, long-lived CFCs has increased for a sustained period since the late 1980s.

"In the end, we concluded that it's most likely that someone may be producing the CFC-11 that's escaping to the atmosphere," he said.

"We don't know why they might be doing that and if it is being made for some specific purpose, or inadvertently as a side product of some other chemical process."

Montzka said if the source of the new emissions can be identified and contained soon, the damage to the ozone should be minor, but warned if not remedied soon, substantial delays could be caused to the already slow recovery of our protective atmosphere.

CNN's Madison Park contributed reporting.

Scientists Discover Three Giant Antarctic Valleys .
They might play a crucial role in the continent's future.The findings are the first fruits of a project known as PolarGAP, which started in 2015 and was funded by the European Space Agency with the goal of better understanding the South Pole's gravity field and geography. The two-year survey used small Twin Otter planes, sensors detecting gravity and magnetism, as well as radar and laser altimeter tools. Now the results are starting to come in, published in Geophysical Research Letters.

—   Share news in the SOC. Networks

Topical videos:

This is interesting!