From: "FlyBird" <[EMAIL PROTECTED]> Newsgroups: gmane.science.general.global-change To: "globalchange" <[email protected]> Sent: Monday, October 20, 2008 9:20 AM Subject: [Global Change: 2947] Re: Ocean Iron Fertilization
> > Now Livescience.com mentions 2 studies that say typhooons / > hurricanes / cyclones may be burying CO2 in the oceans. Hmmm maybe > those mounds underneath the ocean has the same effect as hurricanes, > as in stirring up the oceans and mixing around the fish food! ? Nature > trying to heel itself? > > http://www.livescience.com/environment/081019-cyclones-carbon.html > I think there are two different things going on here - one is taking CO2 out of the air and putting it in the ocean, the other is taking it out of ocean water and sequestering it as a solid on the sea floor. The oceans will soak up some CO2 from the atmosphere, to a point, but that raises a new environmental issue since the water becomes more acidic as a result. Once it's in the water, zooplankton take carbon and fix it in their skeletons, a process that eventually leads to the formation of limestone deposits. That takes some carbon out of the carbon cycle, unless the limestone is excavated, crushed, and heated to make cement :-( -dl --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
