Sentences with phrase «ozone recovery by»

This report found that phasing out the small remaining uses of ODSs, which are currently exempted from phase - outs, would hasten ozone recovery by about 11 years.

Not exact matches

Recent increases in an unregulated ozone - depleting substance, could delay recovery of Antarctic ozone levels by 5 - 30 years, depending on emissions scenarios.

«Ozone recovery may be delayed by unregulated chemicals: Recent increases in an unregulated ozone - depleting substance, could delay recovery of Antarctic ozone levels by 5 - 30 years, depending on emissions scenarios.&rOzone recovery may be delayed by unregulated chemicals: Recent increases in an unregulated ozone - depleting substance, could delay recovery of Antarctic ozone levels by 5 - 30 years, depending on emissions scenarios.&rozone - depleting substance, could delay recovery of Antarctic ozone levels by 5 - 30 years, depending on emissions scenarios.&rozone levels by 5 - 30 years, depending on emissions scenarios.»

To determine whether declining pollutants deserve credit for the recovery, the researchers used a 3D atmospheric model to separate the effects of the chemicals from those of weather, which can affect ozone loss through winds and temperature, and volcanic eruptions, which deplete ozone by pumping sulfate particles into the upper atmosphere.

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 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.

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

The study, led by Simone Tilmes of the National Center for Atmospheric Research (NCAR) in Boulder, Colo., warns that such an approach would delay the recovery of the Antarctic ozone hole by decades and cause significant ozone loss over the Arctic.»

Current estimates project a substantial recovery of the ozone layer over the Antarctic by around 2070.

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.

According to a study published in the March 2002 Journal of Geographical Research by a joint research team from the University of Maryland and NASA, overall, the increased amount of CO2 in the atmosphere is speeding up the recovery of the ozone layer — including the hole at the South Pole.

The Montreal Protocol on Substances that Deplete the Ozone Layer («Montreal Protocol») is often cited as the most successful international environmental agreement — having successfully forced the phase - out of more than ninety - eight percent of ozone - depleting substances («ODS»), placing the ozone layer on the road to recovery by the end of the twenty - first cenOzone Layer («Montreal Protocol») is often cited as the most successful international environmental agreement — having successfully forced the phase - out of more than ninety - eight percent of ozone - depleting substances («ODS»), placing the ozone layer on the road to recovery by the end of the twenty - first cenozone - depleting substances («ODS»), placing the ozone layer on the road to recovery by the end of the twenty - first cenozone layer on the road to recovery by the end of the twenty - first century.

The success of that agreement, which has put the ozone layer on the path to recovery by 2065, calls for a repeat.

The trend was interrupted following international agreements (Montreal Protocol and its Amendments signed 30 years ago in 1987) on the reduction of ozone - depleting substances, and the first signs of ozone recovery were seen by satellites.

During the period of summer ozone recovery (2000 — 2050), the SAM index exhibits weakly negative, statistically insignificant trends due to stratospheric ozone recovery which offsets the positive forcing imposed by increasing GHG concentrations.

But on current emission trends, that could delay the ozone hole's recovery by 30 years, until at least 2095, he suggested.

The long time scale for this recovery arises because ozone depleting gases such as chlorofluorocarbons are only removed from the atmosphere by natural processes at very slow rates.

For that insight and effort the planet is rewarded with years of ozone recovery and a comfort that a disaster was avoided by a global awareness and response.

Continued monitoring of ozone and ozone - depleting substances is essential for verification of ozone layer recovery as expected by about 2050, which hinges on the complete elimination of atmospheric ozone - depleting substances.

Such large ozone hole events may still occur in future years, as projections indicate that the recovery will take decades before they disappear entirely by 2055 - 2065.

Arblaster and Meehl (2006) asserted that a recovery in the ozone hole would be matched by inexorable increase in greenhouse gases:

The recovery of the ozone layer is being delayed by human emissions of greenhouse gases like carbon dioxide and methane.

How do you know that the warming of the stratosphere is caused by the ozone recovery and not by the reduced solar activity after the peak of cycle 23 reducing the rate of energy loss to space?

In contrast, predictions made by the chemistry - climate models indicate that, as a consequence of ozone recovery — a factor largely ignored by IPCC models — the tropospheric winds in the Southern Hemisphere may actually decelerate in the high latitudes and move toward the equator, potentially reversing the direction of climate change in that hemisphere.