Ladies Logic

Saturday, December 06, 2008

About Those "Melting" Icebergs

I am posting this sans commentary because the story says it all. Mother Earth does a better job taking care of herself than mankind EVER will.....

Collapsing antarctic ice sheets, which have become potent symbols of global warming, may actually turn out to help in the battle against climate change and soaring carbon emissions.

Professor Rob Raiswell, a geologist at the University of Leeds, says that as the sheets break off the ice covering the continent, floating icebergs are produced that gouge minerals from the bedrock as they make their way to the sea. Raiswell believes that the accumulated frozen mud could breathe life into the icy waters around Antarctica, triggering a large, natural removal of carbon dioxide from the atmosphere.

And as rising temperatures cause the ice sheets to break up faster, creating more icebergs, the amount of carbon dioxide removed will also rise. Raiswell says: ' It won't solve the problem, but it might buy us some time.'

As the icebergs drift northwards, they sprinkle the minerals through the ocean. Among these minerals, Raiswell's research shows, are iron compounds that can fertilise large-scale growth of photosynthetic plankton, which take in carbon dioxide from the air as they flourish.

According to his calculations, melting Antarctic icebergs already deposit up to 120,000 tonnes of this 'bioavailable' iron into the Southern Ocean each year, enough to grow sufficient plankton to remove some 2.6 billion tonnes of carbon dioxide, equivalent to the annual carbon pollution of India and Japan. A 1 per cent increase in the number of icebergs in the Southern Ocean could remove an extra 26 million tonnes of CO2, equivalent to the annual emissions of Croatia.

Raiswell, a Leverhulme Emeritus Fellow, said: 'We see the rapid ice loss in Antarctica as one obvious sign of climate warming, but could it be the Earth's attempt to save us from global warming?' He added that the effect had not been discovered before because scientists assumed that the iron in the iceberg sediment was inert and could not be used by plankton.


Heh.....

Labels:

3 Comments:

  • So then we just have to deal with the rise in sea levels...

    Heh, indeed.

    By Blogger Jason The, at 5:22 AM  

  • Let's put the Dutch in charge of that, shall we?

    By Blogger Kermit, at 9:28 AM  

  • Jason,

    Have you ever heard of a little thing called evaporation? It's where the the sun (that big hot yellow ball in the sky) warms up the water molecules to the point where they transition into a more vaporous stage. That allows the water to be carried (usually on the jet stream) in the air. Once airborne, those vaporized water molecules join together. When they get big enough and heavy enough they fall from the sky (in the form of rain) on areas that NEED the water.

    In other words AGAIN the planet takes care of itself quite well thank you very much.

    Maybe a remedial SCIENCE class will help you grasp that concept.

    LL

    By Blogger The Lady Logician, at 9:52 AM  

Post a Comment

<< Home