To quote the image caption: "Capturing and storing carbon dioxide (CO2) and other greenhouse gases deep underground is one of the most promising options for reducing the effects of energy production on the earth. Scientists at PNNL are using electron microscopes to understand the reaction of CO2 and minerals found underground. This picture, taken with an electron microscope, shows the aftermath of fayalite reacting with gaseous CO2 to form siderite, thereby capturing the CO2 in a solid, stable form. Research was funded by the U.S. Department of Energy."
If capturing and storing CO2 underground via reaction with minerals is such a great idea, why not do this spontaneously, above ground in the smoke stack* and thus completely avoid the very costly and risky formation and transport of conc CO2, the ongoing showstoppers of CCS? Anyway, my favorite image of stored carbon is an unburned and hopefully un-mined lump of coal. Greg *http://pubs.acs.org/doi/abs/10.1021/es102671x ________________________________ From: geoengineering@googlegroups.com [geoengineering@googlegroups.com] on behalf of Dr D [durb...@gmail.com] Sent: Thursday, September 12, 2013 11:53 AM To: geoengineering@googlegroups.com Subject: [geo] *Seeing* carbon-capture minerals using electron microscopy I thought listers who are interested in carbon capture might appreciate this micrograph of trapped CO2. Might be useful for your slides... http://www.flickr.com/photos/pnnl/8146324880/in/photostream/ -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
