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Mysterious new man-made gases pose threat to ozone layer

RATE THIS! +22
Posted in Science on 9th Mar, 2014 11:40 PM by AlexMuller

Scientists have identified four new man-made gases that are contributing to the depletion of the ozone layer. Two of the gases are accumulating at a rate that is causing concern among researchers. Worries over the growing ozone hole have seen the production of chlorofluorocarbon (CFC) gases restricted since the mid 1980s.

 
But the precise origin of these new, similar substances remains a mystery, say scientists. Lying in the atmosphere, between 15 and 30km above the surface of the Earth, the ozone layer plays a critical role in blocking harmful UV rays, which cause cancers in humans and reproductive problems in animals.
 
Scientists from the British Antarctic Survey were the first to discover a huge "hole" in the ozone over Antarctica in 1985. The evidence quickly pointed to CFC gases, which were invented in the 1920s, and were widely used in refrigeration and as aerosol propellants in products like hairsprays and deodorants.
 
Remarkably, global action was rapidly agreed to tackle CFCs and the Montreal Protocol to limit these substances came into being in 1987. A total global ban on production came into force in 2010.
 
Now, researchers from the University of East Anglia have discovered evidence of four new gases that can destroy ozone and are getting into the atmosphere from as yet unidentified sources.

Tags: atmosphereozone layerCFCs

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Comments

Author: Guest
Posted: 2014-03-10
+2
Well, it is now critical to quickly find out more about these new gases that are damaging ozone layer and their origin so that an appropriate action can follow before a big problem is created Reply
Author: Guest
Posted: 2014-03-10
+1
It seems that there is a general agreement that while the current concentrations of these gases are small and they don't present an immediate concern, work would have to be done to identify their origin. Hopefully, this can be be done quickly Reply
Author: Guest
Posted: 2014-03-10
+2
This is very important issue. The Earth’s ozone layer is important because it filters out much of the sun’s harmful UV radiation. Without it, we humans would fry!
1 Replies
Author: Guest
Posted: 2014-03-10
+1
I agree. Having a large hole in the ozone layer, mostly above Antarctica, is a very bad thing. Even after banning CFCs, we have only seen small improvements in its healing process.
2 Replies
Author: Guest
Posted: 2014-03-10
+0
The importance of the ozone layer is undisputed. It is Earth’s natural sunscreen protects life on Earth by absorbing ultraviolet light, which damages DNA in plants and animals and leads to skin cancer- preserving it is vital! Reply
Reply
Reply
Author: Guest
Posted: 2016-12-26
+0
That's a mod-lbreaker. Great thinking! Reply


 

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