Navigation Links
Human Induced Global Warming Drying Up Arctic Ponds

Global warming is now taking its toll on the ancient Arctic ponds as well, according to new study by a researcher from Queen's University, Kingston, Canada.

These ponds, which lie atop bedrock, freeze solid in the winter and then melt for a few months each summer, becoming hot spots of activity in the forbidding Arctic terrain. Varying in size, with some reaching three feet (a meter) deep and around several hundred feet across, the ponds brim with moss, algae, fairy shrimp, and other organisms that need liquid water to live during the summer.

"If you fly over, you see them everywhere," said study leader John Smol.

But now these ponds are fast disappearing because of global warming caused by humans.

According to Smol, some of these ponds are going bone dry in the summer or shrinking to tiny puddles, while others are a fraction of their former size, said Smol.

The wetlands around some of the ponds are also disappearing, threatening the creatures that inhabit these areas, said Smol.

"They're so dry you can put a match to it and they'll burn," he said.

Smol, who together with Marianne Douglas at the University of Alberta in Edmonton, spent more than two decades tracking about 45 ponds on Canada's Ellsmere Island, which is located just off the northwest coast of Greenland, had found in earlier studies, that the ponds had been relatively stable for several thousand years-until the 1800s; but that new kinds of diatoms and mosses had taken over the ponds in recent years, the first signs of global warming.

During their study, the duo searched sediments in the ponds and dug out the shells of diatoms-microbes that grow protective mineral sheaths around themselves.

"In recent years there has actually been more rain and snow in this region than a couple of decades ago, but because of global warming, the summers are warmer, so the ponds are losing m ore water to evaporation-greater than the gain from the extra precipitation," said Smol.

"So like a pot of simmering stew, the ponds are becoming smaller and saltier. Of the 24 or so ponds that Smol and Douglas were tracking, all were drying and shrinking, and two or three went completely dry in the summers of 2005 and 2006," he said.

"We've seen, in our lifetime, in front of our eyes, some of these ponds dry up. It is quite striking," National Geographic quoted him as saying.

"In wetter years the now-dry ponds may again fill with water. But they won't be the same again, since many of the organisms that once lived in the ponds have probably died," he added.

The study appears in this week's Proceedings of the National Academy of Sciences (PNAS).


'"/>




Related medicine news :

1. Human Genome Project Achieves Technological Triumph
2. First Vaccine Designed for Africa Cleared for Testing in Humans
3. Human gene number increases
4. Scientists found ancient Human Germ Killer
5. New standards for Human Research Safety
6. Human wasting disease linked to a gene
7. The Human Mad Cow Case
8. Human Growth Hormone Found To be Dangerous For Human Use
9. Human Antibody That Can Block SARS
10. Human immunity system can battle HIV.
11. Two New Human Papilloma virus (HPV) vaccines to prevent cervical cancer
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/28/2017)... ... March 28, 2017 , ... City trips have soared 82% ... Trends Report). As travelers visit both urban destinations, they are faced with exploration ... exposure. In response, the outdoor industry has blurred the lines between fashion and ...
(Date:3/28/2017)... ... 2017 , ... Z-Medica, LLC, a leading developer and marketer ... will acquire QuikClot® Bleeding Control Kits® (BCK) to equip up to 1,000 schools ... by the American College of Surgeons, U.S. Department of Defense, Department of Homeland ...
(Date:3/28/2017)... ... March 28, 2017 , ... ... Paul Yost, will begin serving as new board chair for Orange County health ... will serve the remainder of soon-to-be former chair Mark Refowitz’s term, which runs ...
(Date:3/28/2017)... (PRWEB) , ... March 28, 2017 , ... ... health plans work, the Self-Funding Success website has recently developed and published an ... Health Plans ” was created based on common inquiries the site’s team of ...
(Date:3/28/2017)... ... March 28, 2017 , ... Prominant bariatric surgeon and ... thrilled to offer the recently FDA-approved Obalon Balloon System to his patients. The ... Advanced Surgical’s already comprehensive list of weight-loss services. Dr. Liu is proud ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... , March 27, 2017 ... specialty clinical-stage pharmaceutical company specializing in the development of ... public offering in the United States ... each ADS representing 40 ordinary shares of the ... In addition, Therapix has granted the underwriters a ...
(Date:3/27/2017)...  Cryoport, Inc. (NASDAQ: CYRX, CYRXW) ("Cryoport" or the ... of common stock in an underwritten public offering under ... Securities and Exchange Commission (the "SEC"). The offering is ... be no assurance as to whether or when the ... size or terms of the offering. Cryoport also expects ...
(Date:3/27/2017)... 2017 To mark the end of Save Your ... leader in digital imaging solutions, will showcase Canon eye care ... New York,s Jacob Javits Center from ... sponsored by the American Optometric Association, is observed annually in ... comprehensive eye exams. In recognition of this observance, Canon ...
Breaking Medicine Technology: