http://blogs.ei.columbia.edu Tue, 21 May 2013 15:39:03 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.1 http://blogs.ei.columbia.edu/2012/04/03/oil-stains-on-direct-air-capture/ http://blogs.ei.columbia.edu/2012/04/03/oil-stains-on-direct-air-capture/#comments Tue, 03 Apr 2012 14:21:47 +0000 Klaus Lackner http://blogs.ei.columbia.edu/?p=24611 http://blogs.ei.columbia.edu/2012/04/03/oil-stains-on-direct-air-capture/feed/ 0