Sentences with phrase «on ozone layer»

The impact of methyl bromide on the ozone layer is unusually severe and rapid.

Bromine, the ozone - depleting element found in methyl bromide, is nearly 60 times more effective at destroying ozone than the chlorine found in CFCs.9 This means that even though its atmospheric lifetime is quite short (a little over a year) 31, the immediate impact of changes in methyl bromide emissions on the ozone layer is very high compared to other chemicals.

The 2nd biggest lie was about man's effect on the ozone layer.

The science on «particulate clouds and their effect on the ozone layer» is very clear.

The lead author of the recent study on the ozone layer believes that the reversal of the hole's expansion is in large part a result of the Protocol.

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A good example would be to ask the question, «What affect did the banning of CFC's have on the ozone layer?»

He says that the increased solar brightness over the past 20 years has not been enough to cause the observed climate changes, but believes that the impact of intense sunshine on the ozone layer and cloud cover could be affecting the climate more than the sunlight itself.

An ocean of pure chlorine at sea level would have zero effect on the ozone layer, because it can't get up there.

She has done research on ozone layer protection and nuclear chemistry, including environmental chemistry, specifically.

You really will wind up extinct from enabling people who lie into your faces about things like the effect of halogenated refrigerants on the ozone layer, fully confirmed by laboratory experiments as well as field observation.

«The researchers also calculated the likely effect of remediation on the ozone layer, but found that ozone depletion would be short - lived and similar to that resulting from natural processes such as large solar storms and volcanic eruptions.»

HFCs may not have the same impact on the ozone layer, but they are potent contributors to climate change.

Higher levels of carbon dioxide, however, do have an indirect effect on the ozone layer in the stratosphere.

«International action on the ozone layer is a major environmental success story,» WMO Secretary - General Michel Jarraud said in a UNEP statement.

«The researchers also calculated the likely effect of remediation on the ozone layer, but found that ozone depletion would be short - lived and similar to that resulting from natural processes such as large solar storms and volcanic eruptions.»

Certain particles may have a damaging effect on the ozone layer, vital for keeping harmful UV rays away from the surface of the Earth.

«Because of its very short - lived nature, and the unlikely scenario of the emissions sustaining a high growth rate, it's highly unlikely dichloromethane would have a major impact on the ozone layer,» said Liang.

In Copenhagen, scientists advised the ministers that banning methyl bromide as a fumigant could have as much effect on the ozone layer as banning CFCs and carbon tetrachloride 3 years earlier than scheduled.

«International action on the ozone layer is a major environmental success story,» said WMO Secretary - General Michel Jarraud.

In three separate indoor UV chambers, Benca exposed the dwarf pines to 7.5, 10 and 13 times Berkeley's normal UV - B intensity, in line with estimates of the impact Siberian Trap eruptions would have had on the ozone layer if their emissions occurred over various lengths of time, ranging from 400,000 years to less than 200,000 years.

In the case of the attack on the ozone layer by chlorofluorocarbons, the impact could be made negligible by operating on the T factor alone, that is, ban the offending chemical.

Not exact matches

Koann Vikoren Skrzyniarz is the Founder and CEO of Sustainable Life Media and Sustainable Brands whose involvement with the intersection of environmental and human issues in business dates back to the mid-1980s when she launched international conferences on improving log utilization, reducing Waste Paper, and eliminating ozone - layer destroying chemicals (CFCs).

We can not blow up the world and continue to live on it; we can not destroy the ozone layer without risking skin cancer; we can not pollute all waters and be able to drink; we can not denude the surface of trees and expect the soil not to erode.

By the late 1980s it became clear that global atmospheric pollution causing both the greenhouse effect and the hole in the ozone layer had become critical threats to life on earth (Henderson - Sellers & Blong 1989).

Additionally, the horror would include catastrophic biological aftereffects from probable destruction of the ozone layer and a nuclear winter likely to end all plant and animal life on earth.

Nature may kick back at us from time to time — with erosion, pollution, holes in the ozone layer and so on — but we like to think that these are simply impersonal matters of ecological imbalance.

The Act implements Australia's obligations as a Party to the Montreal Protocol on Substances that Deplete the Ozone Layer (the Montreal Protocol).

Under the Montreal Protocol on Substances that Deplete the Ozone Layer, methyl bromide can only be used for a non-Quarantine and Pre-Shipment application if a critical use exemption has been approved by the Parties to the Montreal Protocol.

As the Montreal Protocol marks its 25th anniversary — the UN Day for the Preservation of the Ozone Layer — its legacy lives on, tugging and pulling at the sleeves of international efforts to address climate change.

At present, the long - term recovery of the Ozone Layer from the effects of CFCs is still on track, but the presence of increasing dichloromethane will add some uncertainty to our future predictions of ozone and climate.&rOzone Layer from the effects of CFCs is still on track, but the presence of increasing dichloromethane will add some uncertainty to our future predictions of ozone and climate.&rozone and climate.»

In 2004, Looy and her former Ph.D. advisor Henk Visscher proposed one way this might have played out, bases on fossilized abnormal plant spores found worldwide: volcanic gases — halocarbons like methyl chloride and methyl bromide — destroyed much or all of Earth's ozone layer, boosting UV - B exposure that would have affected life and potentially increased the genetic mutation rates in pollen and spores of plants worldwide.

Ever since the 1987 Montreal protocol phased out the use of chlorofluorocarbons (CFCs) and other ozone - depleting gases, Earth's damaged ozone layer has been on the mend.

The ozone layer — a high - altitude expanse of oxygen molecules that protects us from the sun's ultraviolet rays — has been on the mend for the past decade or so.

At present, the long - term recovery of the Ozone Layer from the effects of CFCs is still on track, but the presence of increasing dichloromethane will lead to uncertainty in our future predictions of ozone and climate.&rOzone Layer from the effects of CFCs is still on track, but the presence of increasing dichloromethane will lead to uncertainty in our future predictions of ozone and climate.&rozone and climate.»

Earth's protective ozone layer is well on track to recovery in the next few decades thanks to concerted international action against ozone depleting substances, according to a new assessment by 300 scientists.

The success of the Montreal Protocol should encourage further action not only on the protection and recovery of the ozone layer but also on climate.

THE ozone layer spotted above Venus does not necessarily indicate life, as it does back home on Earth.

«Earth's ozone layer on track to recovery, scientists report.»

The images above show the Antarctic ozone hole on September 16 (the International Day for the Preservation of the Ozone Layer) in the years 1979, 1987, 2006, and ozone hole on September 16 (the International Day for the Preservation of the Ozone Layer) in the years 1979, 1987, 2006, and Ozone Layer) in the years 1979, 1987, 2006, and 2011.

«There are positive indications that the ozone layer is on track to recovery towards the middle of the century.

What happens to the ozone layer in the second half of the 21st century will largely depend on concentrations of CO2, methane and nitrous oxide — the three main long - lived greenhouse gases in the atmosphere.

Within a few hours, a superflare on the sun could fry Earth and begin disintegrating the ozone layer (see # 2).

HCFCs are themselves replacements for chlorofluorocarbons (CFCs), ozone - destroying chemicals banned under the 1987 Montreal Protocol on Substances that Deplete the Ozone Lozone - destroying chemicals banned under the 1987 Montreal Protocol on Substances that Deplete the Ozone LOzone Layer.

The European Union has indicated its support for tightening restrictions on HFCs, which are greenhouse gases, under the Montreal Protocol, a pact designed to protect the ozone layer.

The production of these substances has been regulated and largely prohibited already for more than 20 years by the Montreal Protocol and further international agreements on the protection of the ozone layer.

The meeting was the first large - scale attempt to bridge the gap between scientists and policymakers on a wide range of atmospheric problems, including not just the greenhouse effect but also acid rain and the depletion of the protective layer of ozone in the stratosphere.

The reduced energy from the Sun sets into motion a sequence of events on Earth beginning with a thinning of the stratospheric ozone layer.

This year, scientists recorded the minimum thickness of the ozone layer at 101 Dobson units on October 4, 2015, as compared to 250 - 350 Dobson units during the 1960s, before the Antarctic ozone hole occurred.

Scientists also found that the minimum thickness of ozone layer this year was recorded at 114 Dobson units on Sept. 30, compared to 250 - 350 Dobson units during the 1960s.