Sentences with phrase «ozone layer over»

That news turned heads because it's the ozone layer over Antarctica that's most prone to ozone loss.

A satellite view of the status of the ozone layer over the Antarctic pole on Aug. 5.

This attitude was nailed down in 1985 when a British group announced their discovery of a «hole» in the ozone layer over Antarctica.

A bigger hole in the ozone layer over Northern Hemisphere countries could mean more UV damage to humans, animals and plants.

22 Ozone in the stratosphere filters out much of the harmful ultraviolet radiation from the sun View Figure 25 on page 379 of your textbook In the 1970s scientists noticed that the ozone layer over Antarctica was growing thinner OZONE DEPLETION

Three British scientists shocked the world when they revealed on May 16th, 1985 — 25 years ago — that aerosol chemicals, among other factors, had torn a hole in the ozone layer over the South Pole.

In each year beginning in the early 1980s the stratospheric ozone layer over Antarctica has thinned dramatically and abnormally during springtime.

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.

Now the ozone layer over the Arctic is so thin that for the first time it can be... Continue reading →

The Antarctic hole would be 40 percent bigger than it is; the ozone layer over Europe and North America would be 10 percent thinner; the 2011 Arctic hole would have been Antarctic - sized; and we would be looking at about 2 million more cases of skin cancers by 2030, according to research conducted by Chipperfield and colleagues.

The hole in the ozone layer over Antarctica was created by human - produced chlorofluorocarbons (CFCs) that came from things like aerosol cans and air - conditioners and refrigerators.

We can no longer protect the stratospheric ozone layer over the United States.

«Although significant ozone depletion mostly affects the Antarctic, conditions in the ozone layer over the Arctic are sometimes sufficient to create substantial depletion.

The overview report states that the «stratospheric ozone layer over the Arctic is not expected to improve significantly for at least a few decades».

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.

In the mid-1980s, scientists discovered that a seasonal hole was forming in the ozone layer over the South Pole.

The hole in the ozone layer over Antarctica has expanded to near - record levels, scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA) said Thursday.

The hole in the ozone layer over the Antarctic has expanded to near - record levels, scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA) said Thursday.

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

The whole country is aware that it is increased ultraviolet light caused by the hole in the ozone layer over Antarctica that makes the sun so vicious.

For example, they say, injecting sulfate particles into the atmosphere would largely destroy the ozone layer over the Arctic and set back attempts to mend the «hole» that appears seasonally over the Antarctic.

The researchers suggest that the hole in the ozone layer over the Antarctic would have grown in size by an additional 40 % by 2013.

Methyl bromide may be responsible for as much as 10 per cent of the thinning of the ozone layer over Antarctica today.

«Mini-Holes» have opened in the ozone layer over northern Europe and Canada in the past few weeks.

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

CFCs were banned from spray cans in the United States and Canada in the late 1970s, and the appearance of a «hole» in the ozone layer over Antarctica in the early 1980s created an international consensus that CFCs must go.

Good news for fans of planet Earth: The seasonal hole in the ozone layer over Antarctica was at its second - smallest point in the past 20 years, according to new research from NASA and the National Oceanic and Atmospheric Administration (NOAA).

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.

In October 1983, Farman discovered that a huge hole had opened up in the ozone layer over Antarctica — and that it was man - made.

Not exact matches

In three separate indoor UV chambers, Benca exposed the dwarf pines to 7.5, 10 and 13 times Berkeley's normal UV - B intensity, in line with estimates of the impact Siberian Trap eruptions would have had on the ozone layer if their emissions occurred over various lengths of time, ranging from 400,000 years to less than 200,000 years.

Over time, the new molecules piled up and formed the ozone layer, a natural sunscreen floating a few tens of miles above the ground.

Layers of depleted ozone open up over both poles just as winter gives way to spring.

Similar scandals erupted over the effects of scores of industrial applications, ranging from sulfur dioxide and acid rain, to certain aerosols and the hole in the ozone layer, to leaded gas and cognitive impairment, to the granddaddy of them all, fossil fuels and global climate change.

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 surfOver 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 surfover 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.

Their model also suggests that had ozone - depleting substances continued to increase, the ozone layer would have become significantly thinner over other parts of the globe.

If the ozone layer recovers over the decades as expected, the circular winds could weaken, resulting in rapid warming across the entire continent.

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.

In 1985, a trio of British researchers noticed a hole in the ozone layer, our protection against harmful UV rays, over the Antarctic.

Now that we're on ozone depletion, I read a few years ago that NOx over mid-latitudes in N. America, due to agriculture (chem fertilizers) & car - driving, was causing a thinning of the ozone layer.

large areas of polar stratospheric clouds (PSCs)-- clouds in the ozone layer - were present over the Arctic region at altitudes between 14 and 26 km.

As they gazed out over the great island that had lost its forests two thousand years ago, and looked out over the sea whose wild tuna fish populations have been diminished by 96 %, and enjoyed the fresh air that now contained 385 ppm of CO2, and maybe more, and at night looked at the stars through a thinned ozone layer they must wonder what went wrong.

large areas of polar stratospheric clouds (PSCs)-- clouds in the ozone layer - were present over the Arctic region at altitudes between 14 and 26 km.

They did not recreate the temperature and pressure conditions in the ozone layer at some 20 km over Antarctica.

Their model also suggests that had ozone - depleting substances continued to increase, the ozone layer would have become significantly thinner over other parts of the globe.

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

Every year, during the Southern Hemisphere spring, a very strong depletion of the ozone layer takes place over the Antarctic region, caused by human - induced chlorine and bromine compounds in combination with the specific meteorological conditions of that region.

He says that the increased solar brightness over the past 20 years has not been enough to cause the observed climate changes, but believes that the impact of intense sunshine on the ozone layer and cloud cover could be affecting the climate more than the sunlight itself.

Scientists in the US say parts of Australia are being slowly parched because of greenhouse gas emissions — which means that the long - term decline in rainfall over south and south - west Australia results from fossil fuel burning and depletion of the ozone layer by human activity.

My recent Times column argued that the alleged healing of the ozone layer is exaggerated, but so was the impact of the ozone hole over Antarctica:

Over the last 21 years global implementation of the Montreal Protocol on Substances that Deplete the Ozone Layer (Montreal Protocol) as successfully phased out the consumption and production of ozone - depleting substances (ODS) by 95 % in developed countries and 50 - 75 % of the ODS in developing countOzone Layer (Montreal Protocol) as successfully phased out the consumption and production of ozone - depleting substances (ODS) by 95 % in developed countries and 50 - 75 % of the ODS in developing countozone - depleting substances (ODS) by 95 % in developed countries and 50 - 75 % of the ODS in developing countries.