Posted on 05/23/2019 6:23:33 AM PDT by Red Badger
Researchers say that they have pinpointed the major sources of a mysterious recent rise in a dangerous, ozone-destroying chemical.
CFC-11 was primarily used for home insulation but global production was due to be phased out in 2010.
But scientists have seen a big slowdown in the rate of depletion over the past six years.
This new study says this is mostly being caused by new gas production in eastern provinces of China.
CFC-11 is also known as trichlorofluoromethane, and is one of a number of chloroflurocarbon (CFC) chemicals that were initially developed as refrigerants during the 1930s.
However, it took many decades for scientists to discover that when CFCs break down in the atmosphere, they release chlorine atoms that are able to rapidly destroy the ozone layer which protects us from ultraviolet light. A gaping hole in the ozone layer over Antarctica was discovered in the mid 1980s.
The international community agreed the Montreal Protocol in 1987, which banned most of the offending chemicals. Recent research suggests that the hole in the Northern Hemisphere could be fully fixed by the 2030s and Antarctica by the 2060s.
When was the CFC problem discovered?
CFC-11 was the second most abundant CFCs and was initially seen to be declining as expected.
However in 2018 a team of researchers monitoring the atmosphere found that the rate of decline had slowed by about 50% after 2012.
(Excerpt) Read more at bbc.com ...
Wow.
China cheating (on virtually everything).
I’m shocked.
Shocked!
At least they aren’t cheating on the Paris climate accords.
Why? Because according to the Paris accords, China is a developing country, and has committed to review its emissions and climate obligations sometime around 2030!
Ho, ho! How did this but of non misinformation get out??
Go after the polluters. China and India.
China cheating???? Say it ain’t so! /sarc
Always wondered about the hole in the ozone layer.
Was there ever a time when there wasn’t one?
China is a superpower. It can nuke anywhere in the world thanks to Bubba’s buddies at Loral.
True, but not the fact my sarcasm was directed at.
I was aiming at two things: First, China cheats on every agreement when it is in its self-interest. And, second, Obama tried to make us subject to a treaty which was not a treaty (never presented to the Senate) which was very much against our self-interest and highly favorable to the Chinese. So, whatever they do, they don’t have to break it because they are exempt!
NONSENSE!!!
It’s what they do.
They ‘agree’ to anything, sign pledges, treaties and agreements, then do absolutely nothing they said they would do.
ANY NEGOTIATIONS WITH THEM ARE USELESS......................
:: A gaping hole in the ozone layer over Antarctica was discovered in the mid 1980s. ::
And, do we have record that the hole was closed at some point in history?
Maybe the climate of Antarctica is not conducive to the collection/development of the ozone layer?
If you look out over a non-active caldera, do you automatically assume it wasn’t there last month and that it was man-made?
Sheep
Yeah. For that the Clinton gang should be executed.
bttt
Ping for GMTA
The Spanish Conquistadors discovered a huge ‘hole’ in what is now Arizona and went berserk thinking that the earth was being dissolved by the Colorado River....................................Not...................
Bubba deserves as much credit as his Loral comrades.
How do CFCs not only somehow cross the air circulation between the hemispheres across the equator, but also get launched so high into the stratosphere despite being heavier than air?
But we are told daily that America is the driver of this imaginary climate change disaster.
As noted by another FReeper, Agreements with China are a joke and always have been.
That hole in Antarctica is directly underneath one of the worlds most active volcanoes. Its not caused by CFCs, if it was causing holes, where are the other holes? Do all the CFC collect in the south pole because its at the bottom?
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