Sentences with phrase «ozone layer which»

And in March 2015, Shultz penned «A Reagan approach to climate change» (Washington Post), reminding readers of President Reagan's bold response to scientific alarm about thinning of the Earth's ozone layer which led to the Montreal Protocol, a treaty phasing out ozone - depleting chemicals.

It also plays an important role in the destruction of the stratospheric ozone layer which protects us from the harmful ultraviolet rays of the sun.

In a nutshell, many of the elements being sprayed destroy the high - altitude ozone layer which used to protect the earth from UV radiation, back in the good ol' days.

The ozone hole is a severe depletion of Earth's protective ozone layer which takes place each spring over Antarctica.

The recovery of the damaged ozone layer which protects life on Earth from harmful solar radiation is no longer happening worldwide.

Not exact matches

As contemporary societies plunder the earth's forests, contaminate its air, pollute its waterways, overuse its soil, deplete its mineral resources, empty its ozone layer, and overpopulate its habitats, we are undermining the very foundations upon which we depend.

• We are depleting the ozone layer, which protects us from the harmful effects of the sun's radiation.

The best deodorant that I have ever used is Ozone Layer Deodorant, which also happens to be all natural.

Instead of using R - 22 refrigerant, which can damage the earth's protective ozone layer when released, the refrigeration systems used in the manufacturing process employ glycol as refrigerant.

Ozone depleting substances (ODSs) are those substances which deplete the ozone layer and are widely used in refrigerators, airconditioners, fire extinguishers, in dry cleaning, as solvents for cleaning, electronic equipment and as agricultural fumigOzone depleting substances (ODSs) are those substances which deplete the ozone layer and are widely used in refrigerators, airconditioners, fire extinguishers, in dry cleaning, as solvents for cleaning, electronic equipment and as agricultural fumigozone layer and are widely used in refrigerators, airconditioners, fire extinguishers, in dry cleaning, as solvents for cleaning, electronic equipment and as agricultural fumigants.

Industrial emissions of a chemical commonly used in solvents, paint removers, and the production of pharmaceuticals have doubled in the past few years, researchers have found, which could slow the healing of the ozone layer over Antarctica anywhere between 5 and 30 years — or even longer if levels continue to rise.

Recent evidence now suggests, however, that the molecules can reach the lower edge of the stratosphere, which includes the ozone layer, despite its height 8 kilometers above the poles.

The increase lasted less than two days, and it doesn't seem to have bothered the ozone layer, which lies 40 miles below.

The protective ozone layer is under attack from chlorine and bromine, which come from both synthetic chemicals and natural sources.

Within our solar system, the sun's wind of charged particles and radiation forms a bubble called the heliosphere, which repels cosmic rays that can affect Earth's weather, eat away at the ozone layer and damage DNA.

That's because Earth lacked an ozone layer to protect it from UV light — which was far more intense 4 billion years ago than it is now.

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.

Over the last 50 years satellite and ground - based records over Antarctica show ozone column amounts ranging from 100 to 400 Dobson units, which translates to about 1 millimeter (1/25 inch) to 5 millimeters (1/6 inch) of ozone in a layer if all of the ozone were brought down to the surface.

The hole in the ozone layer over Antarctica, which allows harmful ultraviolet radiation to penetrate our atmosphere, is finally starting to heal.

That star, called Eta Carinae, could explode like SN 2006gy, which «probably wouldn't be good for Earth,» Corcoran says, because the event could destroy communications satellites and damage the planet's healing ozone layer.

The formation of large areas of high pressure in the lower atmosphere both lowers ozone levels, by squeezing the ozone layer above, and may provide the very cold conditions in which ozone destruction is greatest.

A final possibility is that there has been increased formation of the hydroxyl radical in the atmosphere — perhaps caused by the thinning of the ozone layer, which allows more ultraviolet radiation to reach low levels.

Earth's storm clouds are stopped about 20 kilometres up by a layer of warm air heated by ozone, which absorbs the sun's ultraviolet rays.

This weakened shielding would have allowed more energetic particles into the upper atmosphere, which would have begun to break down the ozone layer that protects Earth from harmful UV radiation, Meert says.

Using the technique, they have decomposed the compounds into substances which do not harm the ozone layer and which are easy to dispose of.

They are made of fluorinated hydrocarbons which will not deplete the ozone layer, but they are less efficient at putting out fires.

The increased wind speeds seem to be a result of cooling in the upper atmosphere, caused by the hole in the ozone layer above the pole, which is of course the result of chlorofluorocarbon (CFC) pollution.

The world's busiest aircraft flight corridor between North America and Europe borders one of the most threatened sectors of the ozone layer, over the North Atlantic, which thins by up to 25 per cent in late winter.

The Great Barrier Reef lies directly below the largest hole in the ozone layer, which means the region receives significantly more UV radiation than other place on Earth.

They also tolerated periods of temperatures up to 41 °C and, separately, high ultraviolet radiation — which might come about from damage to the ozone layer.

In addition, they must have been able to resist the biologically destructive ultraviolet radiation in sunlight, which was not absorbed by a layer of ozone as it is now.

But radiation from the sun and cosmic rays is 100 times stronger in space than on Earth, which is protected by a layer of ozone and the Van Allen radiation belts.

«Free oxygen [O2] in the atmosphere is required to form a protective layer of ozone [O3], which can shield methane from photochemical destruction,» Reinhard said.

those substances (chiefly chlorofluorocarbons — CFCs) are still thought to be depleting the ozone layer — which is in the stratosphere, some 30 km above the ground - level ozone that people shouldn't be breathing.

A United Nations study has said that the ozone layer, which shields the planet from deadly cancer - causing ultraviolet rays, is showing signs of thickening again, after years of depletion.

David Keith and Frank Keutsch from Harvard led the research, which took the approach of choosing highly reactive aerosols that would not harm the ozone layer.

The aeronomic goal is to study certain molecules that are found in Earth's atmosphere — such as water, chlorine compounds and ozone — which can help us better understand the processes that cause thinning of the ozone layer.

The report credited the Montreal Protocol, which it called «one of the world's most successful environmental treaties,» for the recovery of the ozone layer, which it projects will help prevent two million cases of skin cancer by 2030, besides preventing damage to humans» immune systems as well as wildlife and agriculture.

However, those aerosols form sulfuric acid, which in turn damages the ozone layer.

The Vienna Convention for the Protection of the Ozone Layer (1985), which outlines states» responsibilities for protecting human health and the environment against the adverse effects of ozone depletion, established the framework under which the Montreal Protocol was negotiOzone Layer (1985), which outlines states» responsibilities for protecting human health and the environment against the adverse effects of ozone depletion, established the framework under which the Montreal Protocol was negotiozone depletion, established the framework under which the Montreal Protocol was negotiated.

Earth's much thicker layer of low - level ozone, however, has a much larger contribution from the build - up of molecular oxygen beginning some 2.4 billion years ago from photosynthetic microbes excreting oxygen as a waste gas, which now along with plant life is constantly replenishing Earth's two - atom as well as three - stom ozone oxygen molecules.

This being the same Andrew Watts who recently soundly appealed to Adam's rational by posting excerpts from a paper that outlines what the researcher (Lu) believes is the major mechanism by which CFCs diminish the ozone layer over Antarctica.

These organisms released enormous quantities of hydrogen sulfide into the atmosphere, which had the effect of poisoning most life on land, and destroying the ozone layer.

The study also noted a 10 percent rise in the area of sea ice around the continent since 1980, which the authors said appears related to changes in winds ascribed to the depletion of the ozone layer there.

For two decades, herpetologists were caught up in a debate about a wide range of factors — from damage to the ozone layer to pesticides — that might be contributing to the amphibian die - offs, many of which were occurring in seemingly pristine places.

HFC's are cousins to chlorofluorocarbons (CFC's) and hydrochlorofluorocarbons (HCFC's), two other classes of refrigerants which are being eliminated under the Montreal Protocol, a 21 - year old treaty signed by 195 nations to control the gases that opened up a hole in the earth - protecting ozone layer of the atmosphere.

Conversely, imagine a different scenario in which much of the heat in the layer comes from something else (e.g., ozone).

This increased water vapor appears to be participating in the generation of PSCs which also affect the ztratospheric ozone layer with the introduction of denitritification (the formation of NAD and NAT) which reduces both the ozone content and reduces the removal of chlorine in the polar regions.

However, in phasing out CFCs, humans created new gases, HFCs, which do not deplete the ozone layer, but are hundreds to thousands of times more damaging to the climate than carbon dioxide.

The stratospheric ozone layer protects life on Earth by absorbing ultraviolet light, which damages DNA in plants and animals (including humans) and leads to skin cancer.