login
Become a member
Quick Registration
Full Registration Benefits -
Free Homepages for Doctors
Free Homepages for Hospitals
Free Homepages for Medical Conference
Free Homepages for NGO's
Personal Health Record Creation
Access to all Medical Slides
Access to all Jobs & Products Sale
Ozone Hole Recovery may Affect Global Climate Change
The study, led by Columbia University researchers in the US, has determined that the recovery of the ozone hole is projected to occur sometime in the second half of the 21st century.
The Earth's ozone layer is located in the lower stratosphere, which lies just above the troposphere (which begins at the planet's surface and reaches up to about 12 km), catching harmful ultraviolet rays from the sun.
Until late in the last century, widespread usage of household and commercial aerosols containing chlorofluorocarbons (CFC), unstable compounds which are carried into the stratosphere, lead to significant and rapid ozone depletion.
But, due to the Montreal Protocol, signed by 191 countries, CFC production worldwide was phased out in 1996.
bservations in the last few years indicate that ozone depletion has largely halted and is expected to fully reverse. As a consequence, the new study finds, the Southern Hemisphere climate change may also reverse.
"Our results suggest that stratospheric ozone is important for the Southern Hemisphere climate change, and ought to be more carefully considered in the next set of IPCC model integrations," said Seok-Woo Son, lead-author of the study.
The chemistry-climate models used for the 2006 Ozone Assessment, predict that the Antarctic ozone hole will achieve full recovery in the second half of this century, and that this may have profound impacts on the surface winds.
|
|
|
More News on: Health Effects of Global Warming
 Comment & Contribute
|
- Health News Index
- News Quick Links
| News Categories: |
| » | Research: Bright Colored Chips can Cut Consumption by Half |
| » | Olympic Athlete's Body Via the 80-10-10 Raw Vegan Diet |
| » | Importance of Canned Foods To Help Tackle IOM Weight Of The Nation Recommendations, Highlights Study |
| » | US Rules Pomegranate Juice Claims Deceptive |
| » | Reducing Entrée Size Could Increase Fruit and Vegetable Intake in Children |
| More Diet News | |
|
