For all that think burying CO2 a mile deep in earth is a good idea, better check in with Cornell University.

Carbon dioxide – not water – triggers explosive volcanoes.
Geoscientists have long thought that water – along with shallow magma stored in Earth’s crust – drives volcanoes to erupt. Now, thanks to newly developed research tools at Cornell, scientists have learned that gaseous carbon dioxide can trigger explosive eruptions. Read more…