From: "FlyBird" <[EMAIL PROTECTED]> Newsgroups: gmane.science.general.global-change To: "globalchange" <[email protected]> Sent: Saturday, October 18, 2008 9:29 AM Subject: [Global Change: 2942] Re: Ocean Iron Fertilization
> "Increasing the number of phytoplankton does the same thing as > planting trees." > > But Suzuki wondered if this ash could be used somehow to have a > positive affect on marine life. He eventually devised an underwater > structure that would solve the question of how to recycle the waste > and boost fish stocks in one fell swoop. His belief took a more > physical form in 1982 when his group invented "ashcrete"--a material > made from coal ash and cement--and proposed the idea to the > government. I hope they extract valuable Thorium and Uranium from the coal ash before dumping it in the sea. http://www.reuters.com/article/pressRelease/idUS131671+03-Mar-2008+MW20080303 One wonders if "ashcrete" sea ridges can sequester more CO2 than is produced in their construction life-cycle, or what the CO2 payback time would be (not to mention cost per ton CO2 equivalent sequestered). Using coal combustion and cement production to grow marine plankton seems a little fishy. -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 -~----------~----~----~----~------~----~------~--~---
