About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Rise of 1.5 Degrees Celsius in Mercury Likely to Worsen Global Warming

by Bidita Debnath on February 25, 2013 at 11:22 PM
Font : A-A+

 Rise of 1.5 Degrees Celsius in Mercury Likely to Worsen Global Warming

A rise of 1.5 degrees Celsius in mercury is likely to melt the permanently frozen ground over a large chunk of Siberia.

This could possibly release gigatonnes of carbon from soils that could aggravate global warming, says a study.

Advertisement

"As permafrost covers 24 percent of the land surface of the northern hemisphere, significant thawing could affect vast areas and release gigatonnes of carbon," said Anton Vaks from the Oxford department of earth sciences, who led the research.

"For instance, natural gas facilities in the region, as well as power lines, roads, railways and buildings are all built on permafrost and are vulnerable to thawing. Such a thaw could damage this infrastructure with obvious economic implications," adds Vaks, the journal Science Express reports.
Advertisement

The data comes from a team of researchers from Britain, Russia, Mongolia and Switzerland studying stalactites and stalagmites from caves located along the "permafrost frontier", where ground begins to be permanently frozen in a layer tens to hundreds of metres thick, according to an Oxford statement.

"The stalactites and stalagmites from these caves are a way of looking back in time to see the effects of warm periods similar to our modern climate," says Vaks.

Because stalactites and stalagmites only grow when liquid rainwater and snow melt drips into the caves, these formations record 500,000 years of changing permafrost conditions, including warmer periods similar to the climate today.

Records from a particularly warm period around 400,000 years ago suggest that global warming of 1.5 degrees Celsius compared to the present is enough to cause substantial thawing of permafrost far north from its present-day southern limit.

The team used radiometric dating techniques to date the growth of cave formations (stalactites and stalagmites).

Data from the Ledyanaya Lenskaya Cave - near Russia's Lensk town - in the coldest region showed that the only period when stalactite growth took place occurred about 400,000 years ago, during a period with a global temperature 1.5 degrees higher than today.

Source: IANS
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement
News Category
What's New on Medindia
Menstrual Disorders
Coffee May Help You Fight Endometrial Cancer
Fermented Skin Care
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Health Effects of Global Warming Global Warming 

Recommended Reading
New Discovery Finds Sea Urchins Can Help Battle Global Warming
Sea urchins can soak up tonnes of carbon dioxide (CO2) from the air and help in the battle against ....
New Findings Suggest Global Warming Is 'Less Extreme Than Feared'
A lowered estimate of probable global temperature increase as a result of human-induced emissions .....
Antibiotic Resistance Compared to Global Warming
Antibiotics have been one of the most powerful weapons for doctors to treat infections....
Monthly Heat Records Increase by Factor of 5 Due to Global Warming
Researchers say that monthly temperature extremes have become much more frequent as measurements ......
Health Effects of Global Warming
Greenhouse effect causes excessive heat to build up in the earth’s atmosphere causing global warming...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2022

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
open close
ASK A DOCTOR ONLINE
I have read and I do accept terms of use - Telemedicine

Advantage Medindia: FREE subscription for 'Personalised Health & Wellness website with consultation' (Value Rs.300/-)