Sentences with phrase «ozone depletion»

"Ozone depletion" means the gradual and harmful reduction in the layer of ozone gas found in the Earth's upper atmosphere, which protects us from harmful ultraviolet (UV) radiation from the sun. Full definition
For the first time, it has been shown that the rate of ozone depletion in the upper stratosphere — 35 to 45 kilometres up — is slowing down.
The displacement off the pole also pushes the colder air into latitudes with more sunlight, enhancing ozone depletion in the short term.
At their surface, chemical reactions take place, which constitute the ground for ozone depletion.
(Note that this phenomenon is distinct from the cooling expected from ozone depletion, an entirely separate entity).
How will environmental changes such as ozone depletion and global warming affect human health?
The findings suggest that measuring the total size of the ozone hole says little about ozone depletion, and that it's misleading to use the hole's extent alone to measure environmental progress.
Some readers might recall a story from a couple of years of ago relating polar ozone depletion to cosmic rays and the subsequent failure of predictions made using that theory.
No, I am not going to get into ozone depletion theory.
This year the hole formed later and lasted two weeks longer than usual, leading to almost 100 percent ozone depletion.
Unlike global warming, however, everyone agrees on why ozone depletion is a threat, what causes it, and what to do about it.
However, the atmosphere is a dynamic and complex system and a number of competing factors may be contributing to the record arctic ozone depletion seen this year.
Moreover, the aerosol particles may have contributed to an accelerated rate of ozone depletion during that same period.
Between 1997 and 2000, the average rate of ozone depletion slowed by the equivalent of seven per cent per decade.
They play a key role in the formation of clouds, fog, precipitation and ozone depletion in the atmosphere.
The site has an excellent diagram of the regions of the atmosphere and pages dealing with atmospheric environmental issues such as ozone depletion and the greenhouse effect.
They analyzed ozone measurements taken from weather balloons and satellites, as well as satellite measurements of sulfur dioxide emitted by volcanoes, which can also enhance ozone depletion.
Li F., P. Newman, S. Pawson and J. Perlwitz (February 2018): Effects of Greenhouse Gas Increase and Stratospheric Ozone Depletion on Stratospheric Mean Age of Air in 1960 — 2010.
It is non-toxic with zero Ozone Depletion Potential (ODP) and very low Global Warming Potential (GWP).
«The year 2006 was the all - time maximum for ozone depletion over the Antarctic.»
In the Antarctic ozone depletion causes changes in air pressure that strengthen wind circulation and the winds maintain a cooling effect over the Antarctic continent.
In particular, increases in the number of small particles (called aerosols) in the atmosphere regionally offset and mask the greenhouse effect, and stratospheric ozone depletion contributes to cooling of the upper troposphere and stratosphere.fr2], fr3]
Manmade chlorofluorocarbons drive ozone depletion (not the greenhouse gas carbon dioxide), but scientists say that global warming has likely exacerbated ozone loss because it cools the upper part of the atmosphere even as it warms the lower part.
«POLSTRACC measurement campaign: Strong ozone depletion above Arctic possible.»
Hence, all prerequisites are given for strong ozone depletion in the next weeks.
Shindell, D.T., 1997: The potential influence of ClO · O2 on stratospheric ozone depletion chemistry.
Paramo was founded and is still owned by Nick Brown who is also the founder and owner of Nikwax, the first company in the world to produce a range of water - based waterproofing products, to replace solvent - based aerosols, when ozone depletion became a concern in the 1980s.
In addition to his criticisms of the global warming and ozone depletion issues, Dr.
Were the protocol not in force, scarcely a day would pass when the problems caused by ozone depletion did not impinge on our consciousness.
Reinforcing concerns about future ozone depletion, Braathen says, is recognition that for many years to come there will be more than enough chlorine - and bromine - based pollutants in the stratosphere to allow for the possibility of «complete destruction of ozone — even in the Arctic — if it's cold enough.»
(Indirectly, I think it's possible that using radiation management to ameliorate warming might have some indirect effect, because ozone depletion occurs at low temperatures — that's why ozone holes develop in the winter at the poles — and rad / man would imply that we failed to address carbon emissions.
The current winter and early spring have been extremely cold in the Arctic stratosphere, leading to the potential for substantial ozone depletion there.
Although CFCs are greenhouse gases, they are regulated by the Montreal Protocol, which was motivated by CFCs» contribution to ozone depletion rather than by their contribution to global warming.

Phrases with «ozone depletion»

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