Earth Science News  





.
ICE WORLD
U.N.: Arctic sees record ozone loss

disclaimer: image is for illustration purposes only
by Staff Writers
United Nations, N.Y. (UPI) Apr 5, 2011
A United Nations weather and climate agency says ozone loss over the arctic reached record levels this spring because of ozone-depleting substances and weather.

The arctic region has suffered an ozone loss of about 40 percent from the beginning of the winter to late March, a release by the World Meteorological Organization said Tuesday.

The highest loss previously recorded was about 30 percent over the entire winter, the organization said

"The arctic stratosphere continues to be vulnerable to ozone destruction caused by ozone-depleting substances linked to human activities," organization Secretary-General Michel Jarraud said.

The record loss is despite the success of the Montreal Protocol cutting production and consumption of ozone-destroying chemicals such as chlorofluorocarbons and halons once present in refrigerators, spray cans and fire extinguishers.

"Without the Montreal Protocol, this year's ozone destruction would most likely have been worse," the meteorological group said. "The slow recovery of the ozone layer is due to the fact that ozone-depleting substances stay in the atmosphere for several decades."

The depletion of the ozone layer is also due to a very cold winter in the stratosphere, the organization said, noting that even though this arctic winter was warmer than average at ground level, it was colder in the stratosphere than for a normal arctic winter.

Significant arctic ozone loss is possible in the case of a cold and stable Arctic stratospheric winter, it said.




Share This Article With Planet Earth
del.icio.usdel.icio.us DiggDigg RedditReddit
YahooMyWebYahooMyWeb GoogleGoogle FacebookFacebook



Related Links
Beyond the Ice Age



Tempur-Pedic Mattress Comparison

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News
ICE WORLD
Fishermen, greens see red over Alaska navy exercises
Kodiak, Alaska (AFP) April 4, 2011
Environmental groups and fishermen are sounding the alarm over planned US Navy live-fire exercises they claim threaten marine wildlife including whales in the Gulf of Alaska. They are also angry at plans to sink a decommissioned warship in the north Pacific area, one of the most productive commercial fishing grounds in US waters, at the heart of Alaska's economy. "I know the Navy has to ... read more

.
Get Our Free Newsletters Via Email
  


ICE WORLD
New Zealand ready to bail out quake-hit insurer

Japan using gas to avoid explosion at nuclear plant

Japan plant operator offers 'consolation' payments

Tsunami-stranded dog reunited with owner in Japan

ICE WORLD
Japan stems uncontrolled leak from nuclear plant

Facebook launches page for journalists

Radioactive water leak into sea stops at Fukushima: Jiji

'Skype school' brings knowledge to Indian village

ICE WORLD
Brazil should consult natives on Amazon dam: panel

First Broad-Scale Maps Of Life On The Sea-Shelf

World's Reef Fishes Tussling With Human Overpopulation

Dive dive dive: new adventure for Virgin stuntman

ICE WORLD
U.N.: Arctic sees record ozone loss

Human Impacts On The Marine Ecosystems Of Antarctica

Fishermen, greens see red over Alaska navy exercises

Antarctic Icebergs Play A Previously Unknown Role In Global Carbon Cycle, Climate

ICE WORLD
Research On Satellite Imagery Aims To Advance Sustainable Agriculture

Romanian agriculture minister pleads for GM soy

Huge rooftop greenhouse is Montreal's local farm

Quake-hit sake brewers urge Japanese to party

ICE WORLD
US forecasters predict busy 2011 hurricane season

S.Korea proposes fresh volcano talks with N.Korea

Oregon volcano to be monitored

Son becomes guardian of Indonesian volcano

ICE WORLD
167 foreigners leave Ivory Coast main city: French military

French, UN troops in action against Gbagbo camp: France

Ivory Coast opposition blockade lifted, police desert: UN

A New Scramble For African Riches - Its Consumers

ICE WORLD
Elevated Levels Of Sodium Blunt Response To Stress

Hookah Use Widespread Among College Students

It's Not Over When It's Over: Storing Sounds In The Inner Ear

Archaeologists Explore Iraqi Marshes For Origins Of Urbanization


The content herein, unless otherwise known to be public domain, are Copyright 1995-2010 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement