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:6/23/2017)... ... , ... PureLife Dental is pleased to announce that California Dental Association (CDA) ... of the amalgam separator endorsement, all CDA members may purchase an ECO II amalgam ... value. This partnership between PureLife and CDA is especially timely as it coincides with ...
(Date:6/23/2017)... ... June 23, 2017 , ... American Farmer, will feature Chr. Hansen, Inc ... to air fourth quarter 2017. American Farmer airs Tuesdays at 8:30aET on RFD-TV. Check ... founded Chr. Hansen in Denmark in 1874 after a groundbreaking discovery of how to ...
(Date:6/23/2017)... ... June 23, 2017 , ... The ... related services to families and business owners in and around Lackawanna County, is ... senior citizens in the area. , Meals on Wheels of NEPA provides hand-delivered ...
(Date:6/23/2017)... Gilmer, TX (PRWEB) , ... June 23, 2017 , ... ... consultations to residential and business clients throughout eastern Texas, is announcing the launch of ... , Recent breast cancer statistics in the United States reveal that an estimated ...
(Date:6/23/2017)... The Woodlands, TX (PRWEB) , ... June 23, ... ... provides families and business owners in the Houston area with access to asset ... Foundation for a regional charity event aimed at improving the lives of children ...
Breaking Medicine News(10 mins):
(Date:6/10/2017)... 2017  Shane K. Burchfield, DPM, is recognized by Continental Who,s ... Podiatrist in Alabama . Dr. ... Care. He brings over 20 years of experience, as well as ... to his role. ... pleased to welcome you to his practice," the company,s ...
(Date:6/9/2017)... , June 9, 2017 More than ... further effort to help spread lessons learned from clinical ... International Diabetes Federation (IDF) and Eli Lilly and Company ... the second phase of the Bringing Research in Diabetes ... their commitment to helping people with diabetes effectively manage ...
(Date:6/8/2017)... , June 8, 2017   Responding to Heath ... and the death of singer Chris Cornell in ... Rights International offers a free online psychiatric ... consumers and families about psychotropic drug risks. ... who died from an accidental overdose, has called for tighter ...
Breaking Medicine Technology: