ice

Iceberg ecosystems may help ease global warming

Tuesday, October 23, 2007 by: David Gutierrez, staff writer
Tags: climate change, health news, Natural News

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
White House admits staging fake vaccination operation to gather DNA from the public
EXCLUSIVE: Natural News tests flu vaccine for heavy metals, finds 25,000 times higher mercury level than EPA limit for water
Irrefutable proof we are all being sprayed with poison: 571 tons of toxic lead 'chemtrailed' into America's skies every year
Truvia sweetener a powerful pesticide; scientists shocked as fruit flies die in less than a week from eating GMO-derived erythritol
Russia taking McDonald's to court, threatens countrywide shutdown
Why does the CDC own a patent on Ebola 'invention?'
Senator who attacked Doctor Oz over dietary supplements received over $146,000 in campaign contributions from Big Pharma mega-retailer and Monsanto
Global warming data FAKED by government to fit climate change fictions
Oregon man serving prison sentence for collecting rainwater on his own property
HOAX confirmed: Michelle Obama 'GMOs for children' campaign a parody of modern agricultural politics
Ebola outbreak may already be uncontrollable; Monsanto invests in Ebola treatment drug company as pandemic spreads
Ben & Jerry's switches to non-GMO, Fair Trade ice cream ingredients
Diet soda, aspartame linked to premature deaths in women
Elliot Rodger, like nearly all young killers, was taking psychiatric drugs (Xanax)
Right to farm being stripped from Americans: Michigan to criminalize small family farms with chickens, goats, honey bees and more
BREAKING: CDC whistleblower confesses to MMR vaccine research fraud in historic public statement
Monsanto's seed imperialism halted in Canada thanks to massive protests
5 powerful antibiotics that don't require a prescription
Delicious
(NaturalNews) Antarctic icebergs create miniature marine ecosystems that allow more life than normally exists in an otherwise nutrient-poor region, according to a study published in the journal Science.

Researchers used underwater cameras to observe the undersides of two gigantic icebergs in the Wendell Sea. The icebergs were nearly 12.5 miles long and more than 130 feet tall, with one of them extending almost 1,000 feet beneath the water. The researchers found that the icebergs attracted huge colonies of sea birds above the surface and increased the concentrations of algae, phytoplankton, krill and fish below, thus increasing the biological productivity of the sea by nearly 40 percent.

The number of icebergs in the Antarctic Ocean has been increasing in recent years, as its ice sheets have begun to break up due to global warming. However, the authors of the study speculate that the increased carbon sequestration caused by the icebergs may slow, in some way, the progress of global warming.

The marine ecosystem created by the iceberg is favorable to algae and phytoplankton, which pull carbon dioxide from the atmosphere and shift it into the food chain. "While the melting of Antarctic ice shelves is contributing to rising sea levels and other climate change dynamics in complex ways, this additional role of removing carbon from the atmosphere may have implications for global climate models that need to be further studied," said Ken Smith, an oceanographer at the Monterey Bay Aquarium Research Institute in California.

However, the biological effects of the iceberg may not be permanent. The researchers believe that the icebergs increase the density of life beneath and around them -- for up to a 2-mile radius -- by shedding accumulated terrestrial nutrients, particularly iron, into the ocean.

"The Southern Ocean lacks a major source for terrestrial material due to the absence of major rivers," said Timothy Shaw, a geo-chemist at the University of South Carolina. "The icebergs constitute a moving estuary, distributing terrestrial derived nutrients that are typically supplied by rivers in other areas of the oceans."

How long this nutrient source will last as the icebergs continue to melt is unknown.

Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

GET SHOW DETAILS
+ a FREE GIFT

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.