03 Oct '11, 1pm

Scientists record the largest ever hole in the ozone layer over the Arctic. Is it a sign of worse to come?

SINGAPORE - A huge hole that appeared in the Earth's protective ozone layer above the Arctic in 2011 was the largest recorded in the Northern Hemisphere, triggering worries the event could occur again and be even worse, scientists said in a report today. The ozone layer high in the stratosphere acts like a giant shield against the Sun's ultraviolet (UV) radiation, which can cause skin cancers and cataracts. Since the 1980s, scientists have recorded an ozone hole every summer above the Antarctic at the bottom of the globe. Some years, the holes have been so large they covered the entire continent and stretched to parts of South America, leading to worries about a surge in skin cancers. During extreme events, up to 70 per cent of the ozone layer can be destroyed, before it recovers months later. A matching hole above the Arctic was always much smaller, until March this year,...

Full article: http://www.todayonline.com/World/EDC111003-0000557/Record...

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Arctic ozone hole is largest ever recorded

e360.yale.edu 03 Oct '11, 4pm

03 Oct 2011: Arctic Ozone Hole Is Largest Ever Recorded Scientists say a hole in the Arctic’s protective ozone layer last ...

That hole in ozone layer above the Arctic? In 2011, it grew to the biggest size that scientists have ever recorded.

That hole in ozone layer above the Arctic? In 2...

treehugger.com 03 Oct '11, 7pm

To investigate the 2011 Arctic ozone loss, scientists from 19 institutions in nine countries (United States, Germany, The ...

On Our Radar: Gaping Hole in Arctic Ozone: The ...

green.blogs.nytimes.com 03 Oct '11, 5pm

For the first time since record-keeping began, destruction of the ozone layer over the Arctic in early 2011 was comparable...

Green Blog: On Our Radar: Gaping Hole in Arctic Ozone: The hole over the Arctic now rivals the one over the Ant...

Green Blog: On Our Radar: Gaping Hole in Arctic...

green.blogs.nytimes.com 03 Oct '11, 5pm

NASA Ozone concentrations over the Arctic in March 2010, left, and in March 2011. For the first time since record-keeping ...

Scientists worried as Arctic has record ozone loss - Yahoo! via @yahoosg

Scientists worried as Arctic has record ozone l...

sg.news.yahoo.com 04 Oct '11, 1am

An ozone hole five times the size of California opened over the Arctic this spring, matching ozone loss over Antarctica fo...

Awesome. Now we have two giant holes in the ozo...

grist.org 03 Oct '11, 2pm

I hear New Zealand is beautiful, but I'm never going there, because the ozone is thin and I'll die of skin cancer. I hear ...

more to come

more to come

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earthobservatory.nasa.gov 05 Oct '11, 10pm

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Illustration of Venus via Shutterstock Much like Earth, Venus has an ozone layer high in its atmosphere, according to new ...