Sentences with phrase «which destroys ozone»

erlhapp (18:53:52): Wrong: Energetic Particle Precipitation (EPP) drives production of NOx and HOx which destroys ozone, mainly at high latitudes.

Ozone amounts change with the seasons on the planet, as its presence relies on water vapor, which destroys ozone.

An eerie «polar stratospheric cloud,» which destroys ozone at a rapid rate, hangs above Kiruna, Sweden, in January 2000.

The droplets provide the solid surfaces that catalyse chemical reactions which destroy ozone.

Not exact matches

Using a 3D atmospheric model, the researchers separated the effect of the chemicals from those of weather and volcanic emissions, which can also destroy ozone.

The chemicals companies that make CFCs want refrigerator makers to switch to HFCs, which are similar to CFCs but do not contain the chlorine that destroys stratospheric ozone.

In the harsh sunlight of the upper atmosphere, methane can react with other gases to form water vapor, which then breaks down into other chemicals that destroy ozone.

Those compounds alone can destroy ozone, which helps block the sun's ultraviolet radiation.

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 scientists concluded that as much as 10 per cent of the ozone destroyed so far — which amounts to between 4 and 6 per cent of the preindustrial amount of ozone — has been destroyed by methyl bromide.

Concern that aircraft crossing this boundary destroy ozone dates back more than two decades to the construction of the first Concordes, which cruise at around 16.5 kilometres (55 000 feet).

Tiny particles in these frozen clouds provide surfaces on which the critical chemical reactions take place that destroy ozone.

No specific mention of the «volume cold enough for ozone loss» trend line is made in the Nature text, although it is stated that «Certain clouds in the stratosphere provide surfaces on which CFC decay products are converted into forms that destroy ozone â??

In 1986, Solomon showed that the ozone was being destroyed by the presence of molecules that contain chlorine and bromine, which come from chlorofluorocarbons (CFCs).

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.

E.g. in 1999/2000 about 30 % of the total column ozone was destroyed by anthropogenic chemical loss, which is considerably less than the maximum loss at 19 - 20 km altitude.

He long recognized that reining in emissions of heat - trapping carbon dioxide would be much harder than acting to phase out ozone - destroying chlorofluorocarbons, for which substitutes had been developed and which had no substantial relationship to the economy.

Their measurements, focusing on a time period in September each year — during which time the colder temperatures in the atmosphere promote the reactions that destroy ozone so that the hole is opening up — show that since 2000, the hole has shrunk by 1.7 million square miles, an area more than half the size of the continental United States.

In the atmosphere, a portion of the nitrogen winds up as nitrous oxide — laughing gas — which is not only a greenhouse gas that is 300 times more potent that carbon dioxide, but also destroys ozone, the gas that keeps us from getting more of a dose of UV radiation.

«The rate at which ozone is being destroyed in the upper stratosphere is slowing, and the levels of ozone - destroying chlorine in that layer of the atmosphere have peaked and are going down»

«are the medium on which reservoir chlorine compounds are converted into ozone - destroying chlorine radicals.»

If the principal Judges in the US receive 100,000 emails informing them about the ongoing scheme of crime that is destroying the environment (and the Ozone layer) which is the climate engineering plan that is being implemented by the government in these last decades, nothing will happen?

The other is that very short - lived substances (VSLSs), which contain chlorine and bromine, could be destroying ozone in the lower stratosphere.

But in 1987, the world got together and passed the Montreal Protocol, which banned CFCs and replaced them with HCFCs and HFCs, which don't destroy the ozone layer.

Their work was fundamental to the hypothesis that CFCs (commercial name Freon), which are four times denser than air, were carried to the lower stratosphere, where the chlorine portion, which is indistinguishable from natural source chlorine, destroyed ozone.

«Global geoengineering is completely disrupting the hydrological cycle, destroying the ozone layer (which is exposing all life on Earth to extreme UV radiation), and contaminating the entire surface of the planet with highly toxic bioavailable heavy metals and chemicals.

If you knew the slightest thing about the problem with ozone destroying chemicals, of which the chlorinated freons were prime culprits, you would know that they were a problem because they were supremely stable in the lower atmosphere (pure chlorine not so at all), and were able to transport chlorine to the ozone layer (unlike natural chlorine compounds), whereupon UV light broke them down, released the chlorine, starting a chain reaction destroying the ozone.

Which was more or less addressed because we stopped pumping ozone - destroying chemicals into the atmosphere.

They are destroyed (albeit slowly) by photo dissociation (sunlight) to release the halo atom which then reacts with ozone leading to its depletion.

Climate engineering programs are completely disrupting natural weather and climate cycles all over the world, destroying the ozone layer, and decreasing the overall hydrological cycle (which, in turn, fuels record drought and firestorms).

As many of you will know, and perhaps recall from living memory, alarm bells started ringing when pioneering research by a group of brilliant chemists (Frank Sherwood Rowland, Mario Molina and Paul Crutzen, who were jointly awarded the Nobel Prize for Chemistry in 1995) showed that chlorofluorocarbons (CFCs), a family of chemicals used in many everyday applications such as refrigeration, air conditioning and aerosols, were destroying the ozone molecules which make up the protective layer shielding Earth from the sun's harmful rays.

Avipsa Mahapatra [AM]: This year marks 30 years since the adoption of the Vienna Convention for the Protection of the Ozone Layer, the framework agreement which gave birth to the Montreal Protocol, which established to phase out the chemicals that were destroying the ozone lOzone Layer, the framework agreement which gave birth to the Montreal Protocol, which established to phase out the chemicals that were destroying the ozone lozone layer.

The international treaties that eliminated ozone - destroying chemicals are a more familiar example (but another in which the science was attacked with similar vitriol!)

HCFCs will eventually be replaced by substances called hydrofluorocarbons or HFCs, which do not destroy ozone at all.

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.

They can descend down to the mid-stratosphere and destroy ozone, which leads to cooling of the high - latitude stratosphere.

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.

The result would be a planet on which humans could work and survive outdoors in the summer only in mountainous regions [115,116]-- and there they would need to contend with the fact that a moist stratosphere would have destroyed the ozone layer [117].

One of the most damaging to the economy is the new ozone standard which, according to a recent study, could destroy as many as 7.3 million U.S. jobs.

The hydrochlorofluorocarbon gases (HFCs) used in refrigerants that replaced chlorofluorocarbons (CFCs), which were destroying the ozone layer, are anywhere from 146 to 12,500 times more powerful than carbon dioxide in their global warming potential.