In the 1970s and 80s, a series of pioneering experiments showed that CFCs were destroying ozone in the earth’s stratosphere and, in particular, creating a gaping hole in the layer above Antarctica.

At its worst in the late 1990s, about 10 per cent of the upper ozone layer was depleted, Mr. Newman said. Since 2000, it has increased by about 1 per cent to 3 per cent each decade, the report said.

The Ozone Layer is recovering! Waking Up Between 2–3 AM? A Doctor Explains What Your Body Might Be Telling You Physical habit ...

CFCs didn't just eat the ozone layer, they were also powerful greenhouse gases, and by eliminating them, we've avoided significant climate warming.

SAN FRANCISCO — When nations agreed in 1987 to stop using chemicals that eat away at the protective ozone layer high in the atmosphere, they averted a great deal of hardship, said a senior NASA ...

On May 16, 1985, a shocking announcement revealed a massive hole in the ozone layer above Antarctica, raising concerns about a possible increase in skin cancer and a global temperature rise of up ...

VANCOUVER—The last time Canada had a Conservative government, the country known for its pristine wilderness became a climate pariah on the world stage, winning the satirical “Colossal Fossil ...

October 2009A chronology of events relating to HCFCs and HFCs The more we cool the planet, the warmer the planet gets. Wide-scale application of chemicals in refrigeration and air conditioning has ...

The Ozone Secretariat says the ozone layer is still on track to recovery by the middle of the century, but unchecked CFC-11 emissions “will put that progress at risk.” ...

The stratosphere ranges from 10 km-to 50 km above the Earth, The ozone layer there filters out a majority of the sun’s harmful ultraviolet radiation. Photo Credit: NASA Ozone hole: international ...

At its worst in the late 1990s, about 10 per cent of the upper ozone layer was depleted Author of the article: You can save this article by registering for free here. Or sign-in if you have an ...