facebook
twitter
rss
account
search
search
 

Antarctic ozone hole said shrinking

Feb. 8, 2013 at 4:14 PM   |   Comments

PARIS, Feb. 8 (UPI) -- Satellite imagery confirmed the ozone hole over Antarctica in 2012 was the smallest seen in the past decade, scientists with the European Space Agency reported.

The ozone sensor on Europe's MetOp weather satellite surveyed the hole over Antarctica in 2012, adding to the long-term monitoring of atmospheric ozone started by its predecessors on the ERS-2 and Envisat satellites, a release form ESA's Paris headquarters said Friday.

The ozone hole caused by human-made chlorofluorocarbons -- CFCs -- has been shrinking since international agreements banned the substances in the 1980s in an effort to protect this vital layer of the atmosphere that protects life on Earth from cancer-causing ultraviolet radiation.

Under the ESA's Climate Change Initiative, ozone climate data from a number of sources are used to document the variability of ozone changes better at different scales in space and time.

This allows for better estimates of the timing of the ozone layer recovery and in particular the closure of the ozone hole, scientists said.

Climate models suggest the ozone layer is in an ongoing recovery and the hole over Antarctica could close in the next decades, they said.

© 2013 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Most Popular
1
Tropical storm Karina looks like the number 9 from space
2
Study explains why ER nurses do what they do
3
Tech industry All Stars developing 'Star Trek'-style communication badges
4
Researchers dig up earliest evidence of snail-eating
5
Neanderthals and humans interacted for thousands of years
Trending News
Video
x
Feedback