chlorofluorocarbons

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UN: Ozone Is Bouncing Back

Layer is showing first signs of recovery

(Newser) - An environment story without warnings of impending doom : The ozone layer that blocks cancer-causing rays from the sun is finally starting to recover thanks to global action, according to the World Meteorological Organization and the United Nations Environment Program. While it will probably take until the middle of this century... More »

Ozone Hole Smallest It's Been in a Decade

Chlorofluorocarbon ban appears to be improving Earth's ozone

(Newser) - One of the most infamous symbols of man's assault on the planet is actually diminishing: The ozone hole over Antarctica was smaller in 2012 than it has been in 10 years, reports LiveScience . Scientists credit the improvement to the worldwide ban on chlorofluorocarbons, which cause the hole to appear... More »

80% Loss of Arctic Ozone Caused by...

... months of stratospheric cold weather

(Newser) - Amid our heated political debate on climate change, it's cold air that apparently depleted the Arctic's ozone layer, the BBC reports. An article in the journal Nature says an 80% reduction of Arctic ozone, noted earlier this year , was caused by cold air hanging around the stratosphere for... More »

Ozone Hole Shrinks Again

Efforts to phase out CFCs may actually be working

(Newser) - Here's a rare bit of good environmental news: The hole in the ozone layer over Antarctica, cause célèbre of the '90s, is smaller than it's been for the past 5 years, MSNBC reports. The latest data fit with a pattern of reduction over the last few years that... More »

Your Guide to Greenhouse Gases

Carbon dioxide you know, but what about perfluorocarbons?

(Newser) - With things set to really heat up next week at the Copenhagen climate summit, the Guardian runs down greenhouse gases you oughta know:
  • Carbon dioxide (CO2): Industrialization and deforestation have produced high levels of this gas, which helps trap heat inside Earth’s atmosphere.
  • Methane (CH4): Thirty times more dangerous
... More »

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