Sentences with phrase «damaging ozone»

They used to be chlorofluorocarbons (CFC) that were banned for damaging the ozone layer, and were replaced by HFCs don't cause ozone damage, but are more than a thousand times worse than CO2 as greenhouse gases.

Although the Montreal Protocol eliminated the use of most gases which were damaging the ozone layer, its job is not done as hydrofluorocarbons (HFCs)-- the chemicals which have replaced ozone - depleting substances — are now destroying our climate.

Although the Montreal Protocol eliminated the use of most gases which were damaging the ozone layer...

Keutsch and his colleagues knew that the aerosol they were looking for would need to neutralize sulfuric, nitric and hydrochloric acid on its surface, so as to avoid damaging the ozone.

The potential risks are enormous: disrupting the food chain, damaging the ozone layer, the loss of monsoon rains in Asia — the list goes on.

He also noted that the Montreal Protocol, as a side effect, has bought us about 10 years time in the climate issue, because the now banned CFC's also have a greenhouse effect in addition to damaging the ozone layer.

It neutralizes most of them before they can reach the stratosphere, preventing them from damaging the ozone layer and wreaking havoc on global climate.

But if there is high pressure below, then pollution will descend and planes could fly higher without damaging the ozone layer.»

Although these trees produce oxygen, they also release compounds that can react in the air to create lung - damaging ozone.

Saving ozone with a no - go zone: Jumbo jets are spending more time in the stratosphere than previously realised, and their emissions are damaging the ozone layer.

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.

These cosmic rays would damage the ozone layer, and interstellar dust could dim sunlight and trigger an ice age.

Such sulfuric acid aerosols are already responsible for the bulk of nacreous clouds that form in the polar stratosphere; added particles would just amp up the natural process (although it might also amp up damage the ozone layer).

If the sun spews «superflares» as often as other stars, one could take down power systems, damage the ozone layer and destroy satellites in the next century

But while HFC 134a does not damage the ozone layer, like CFCs it is a powerful greenhouse gas.

The biggest known risk is that they produce sulfuric acid in the stratosphere, which damages ozone.

If the troposphere's OH filter is indeed less effective than scientists thought, he says, the west Pacific would provide «a potentially very important avenue for the injection» of pollutants that could damage the ozone layer.

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

The products are non-toxic, non-flammable, non-carcinogenic and will not damage the ozone layer.

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

Geoengineering solution to global warming could destroy the ozone layer (04/24/2008) A proposed plan to fight global warming by injecting sulfate particles into Earth's upper atmosphere could damage the ozone layer over the Arctic and Antarctic, report researchers writing in the journal Science.

Hydrogen sulfide also damages ozone layer, and fossil spores from the end - Permian era shown deformities that could have been caused by ultraviolet radiation.

Cons: Though pentane doesn't damage the ozone layer, it does contribute to smog, all brands in the US contain HBCD, flammable and produces toxic fumes, made from crude petroleum byproducts, easier to damage than the other rigid foams, protective gear is recommended to be worn during cutting and installation..

If no otherpollution damages the ozone layer it should have recovered by about2050.

HFCs can have a warming effect 1,000 times greater than that of CO2 but do not damage the ozone layer.

Critics contend these climate geoengineering approaches are risky and could kill marine life, stall plant growth, damage the ozone layer, and reduce rainfall while increasing warming in other areas.

The foams sector in India is an example of successful technology transfer via the MLF to phase - out HCFC, another kind of refrigerant that not only damages the ozone layer but also destroys the climate.

Other corporate giants like Du Pont are lowering their output of certain chemicals, the CFCs, that contribute to global warming, an action that began years ago because some of the same chemicals damage the ozone layer.

Not exact matches

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.

Without a protective layer of ozone, life would be exposed to DNA - damaging ultraviolet rays from the sun.

In September, the ozone hole is at its largest because the cold winter months coupled with the returning daylight permit stratospheric cloud formations that do the most damage to the ozone layer.

This means the chemicals can reach the ozone layer before they are degraded and while they can still cause damage.

If the chemicals that were now discovered in unexpectedly large amounts can reach the ozone layer in significant quantities, they can cause damage.

Emissions of ozone - depleting chemicals in places like China are especially damaging because of cold - air surges in East Asia that can quickly carry industrial pollution into the tropics.

According to previous simulations, UV - B radiation at the end of the Permian may have increased from a background level of 10 kilojoules (just above current ambient levels) to as much as 100 kilojoules, due to large concentrations of ozone - damaging halogens spewed from volcanoes (SN: 1/15/11, p. 12).

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.

The trick is that the bromine and chlorine atoms in the halon molecule — the very ones that are so damaging to the stratospheric ozone — are also incredibly aggressive scavengers of hydrogen atoms, which are key to maintaining a combustion chain reaction.

Its one means by which smog ozone damages the lung.

Since the ozone layer absorbs ultraviolet light from the sun, ozone layer depletion can lead to increased rates skin cancer, eye damage and other adverse consequences.

Now, researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have identified an aerosol for solar geoengineering that may be able to cool the planet while simultaneously repairing ozone damage.

Previous research focused on ways to limit the ozone - damaging reactions produced by nonreactive aerosols.

A new computer simulation suggests that the water vapour and sea salt thrown up by the impact could damage the Earth's protective ozone layer, leading to record levels of ultraviolet radiation that could threaten human civilisation.

The Ozone Satellite, 1991 - 2011: It proved the damage caused by CFCs, helped predict climate changes, and saw the beginning of the recovery of the ozone lOzone Satellite, 1991 - 2011: It proved the damage caused by CFCs, helped predict climate changes, and saw the beginning of the recovery of the ozone lozone layer.

The ozone layer helps shield Earth from potentially harmful ultraviolet radiation that can cause skin cancer, cataracts, and suppress immune systems, as well as damage plants.

Earth in the days when life was just beginning had no protective ozone layer, so light - dependent, iron - oxidizing bacteria formed iron minerals around themselves to protect them from damaging ultraviolet rays.

Up in the stratosphere, the ozone layer absorbs harmful UV radiation coming from space — protecting humans, animals and plants from the damage UV does.

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.

According to the letter, Headline was relabeled to say its «benefits may include improved host plant tolerance to yield - robbing environmental stresses, such as drought, heat, cold temperatures, and ozone damage» as well as bacterial and viral infections.

Once miraculous, chlorofluorocarbons that caused ozone damage are now helping scientists track its effects on the Southern Ocean.

It proved the damage caused by CFCs, helped predict climate changes, and saw the beginning of the recovery of the ozone layer.