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
Antarcticas Ozone Hole Impairing Atmospheric Carbon Absorption
Earth's oceans are the largest sink of carbon dioxide, with the Southern Ocean accounting for more than 40 percent of the annual uptake of the greenhouse gas, Andrew Lenton, a marine biochemist at the Pierre and Marie Curie University in Paris, told Nature News.
In theory, seas should soak up more carbon dioxide as levels of the gas in the atmosphere rise.
But, recent measurements have showed that the Southern Ocean's surface waters have higher carbon levels than expected, which also makes them more acidic. As a result, the amount of CO2 that the ocean absorbs each year has also flattened out.
What was missing from the models, according to Lenton, was stratospheric ozone damage - which, along with the climatic effects of greenhouse-gas emissions, is thought to be behind the observed strengthening of southern winds.
According to Lenton, these winds may be causing ocean currents that stir up carbon stored in the deep ocean and bring it up to the surface.
Lenton and his colleagues built Southern Ocean simulations that coupled the ozone's effects on winds to ocean currents and marine carbon levels.
By running the models both with and without ozone depletion since 1975, the researchers "isolated the signal from ozone depletion", said Lenton's co-worker Francis Codron, an atmospheric scientist at the Dynamic Meteorology Laboratory in Paris.
|
|
|
More News on: Small Intestine Biopsy
 Comment & Contribute
|
Medwonders Health Network
- Health News Index
- News Quick Links
 | News Central | | Health Watch | |
| Latest Health News | | Health In Focus | |
| News Category (500+) | | Breaking Health News | |
| Popular News | | Celebrating Life | |
| Health News and Press Release | | Medindia - Exclusive | |
| News Photo Gallery | | India Special | |
| News Video Gallery | | Lifestyle and Wellness | |
| News From Other Resources | |||
| News Categories: |
| » | Scientists Develop Compound That Triggers Cancer Cell Death |
| » | Iraqi National Hopes to Find Affordable Treatment for His Cancer in India |
| » | New Technique can Help Doctors Detect Pancreatic Cancer |
| » | Colorectal Cancer Risk Factors Probed |
| » | Breast MRI 'Better Than Clinical Approach for Predicting Chemotherapy's Efficiency' |
| More Cancer News | |
|
Environmental Health Related News |
||||||||
| » | Nuclear Disasters Likely to Occur Once in 20 Years | » | Cut Down Seagrass Ecosystems to Liberate Carbon | |||||
| » | Research Shows Global Warming Intensifying Water Cycle | » | Future of Renewable Energy: Space-Based Solar Power? | |||||
| » | Earth Will Not be Able to Sustain Human Activity by 2030 | » | Fungus That Can Consume Discarded Plastic Discovered | |||||
| » | Prudent Intake Can Induce Dip in Carbon Footprint: Study | » | Study Links Air Pollution Level Changes in Beijing With Cardiovascular Disease Biomarkers | |||||
| Read More >> | ||||||||
