ADenother new piece of research coming out of Denmark, this time from the most respected Niels Bohr Institute, by professor Gary Shaffer.
See following links:
http://www.nature.com/ngeo/journal/v3/n7/abs/ngeo896.html
http://www.treehugger.com/files/2010/06/geological-storage-co2-emissions-only-viable-leakage-less-than-1-percent-1000-years.php
http://www.sciencedaily.com/releases/2010/06/100627155110.htm