Sentences with phrase «ozone loss caused»

At the same time, ozone loss caused by longer - term nitrogen oxides cut out close to nine percent of the ozone in the upper stratosphere.

At present, naturally - emitted VSLS account for around 90 % of the total ozone loss caused by VSLS in the lower stratosphere.

How does this relate generally to stratospheric cooling over recent decades and the apparent positive feedback whereby ozone loss causes further cooling which leads to further ozone loss... Here's a good overview news feature Ozone And Climate Change from the Earth Observatory at NASA.

How does this relate generally to stratospheric cooling over recent decades and the apparent positive feedback whereby ozone loss causes further cooling which leads to further ozone loss... Here's a good overview news feature Ozone And Climate Change from the Earth Observatory at NASA.

Not exact matches

They fear that similar aerosol already in the northern stratosphere, which came from the eruption of Mount Pinatubo in the Philippines in June 1991, may cause a dramatic loss of ozone in the northern hemisphere next February or March.

Ozone treatment caused no changes in the PLGA and no loss of function, with cells still able to grow on the polymer scaffold, as they would in treatments.

This ozone will help to compensate for any losses in stratospheric ozone, but at the cost of causing global warming.

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.»

Now that we're in March, sufficient sunlight is available to cause sizeable ozone losses.

Anthropogenic chemical loss also contributed to it, but was not the main cause for the unusually thin ozone layer above the UK in this situation.

He took the industry line, that delay was smarter than prompt action, and that physicists» models of change in the upper atmosphere weren't enough reason to be concerned about ozone loss — that there wasn't proof yet that it would cause harm at ground level to humans, so wait, delay.

Anthropogenic chemical loss also contributed to it, but was not the main cause for the unusually thin ozone layer above the UK in this situation.

Now that we're in March, sufficient sunlight is available to cause sizeable ozone losses.

And have you compared those figures to the loss of life, or incidence of other disease, caused by all the carbon monoxide, ozone, etc. produced by all the automobiles a public transit system would otherwise pull of the roads?

Because ozone rapidly decreases with height (very little ozone above 35 km), ozone loss is estimated to have caused only half of the cooling at the higher levels of the stratosphere.

The combination of these two cooling effects causes dramatically increased ozone depletion so that ozone loss in the Arctic by the year 2020 is roughly double what it would be without greenhouse gas increases.

Unfortunately, the tropopause rises in response to warming of the troposphere caused by GHGs AND cooling of the stratosphere caused by ozone loss.

«Although stratospheric ozone losses are expected to stabilize and eventually recover to preindustrial levels over the course of the twenty - first century, these results show that increasing greenhouse gases will continue to intensify the polar vortex throughout the twenty - first century, but that radiative forcing will cause widespread temperature increases over the entire Southern Hemisphere.»

The article states that the ozone loss was «caused by an unusually prolonged period of extremely low temperatures.»

That growth of sea ice could have potentially been caused by the influx of freshwater as glaciers on land melted, or from changes in the winds that whip around the continent (changes that could be linked to warming or the loss of ozone high in the atmosphere).

As scientists race to better understand humankind's role in ozone loss, they must first be able to tease out the natural causes.

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?

They calculated that if CFC production continued to increase at the going rate of 10 % / year until 1990, then remain steady, CFCs would cause a global 5 to 7 percent ozone loss by 1995 and 30 - 50 % loss by 2050.

The loss of stratospheric ozone could also significantly cool the stratosphere, potentially causing destructive climate change.