Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
by Staff Writers
Paris (UPI) Feb 8, 2013
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.
All about the Ozone Layer
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. 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 Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|