Power plants burning fossil fuels produce large quantities of CO2 unless their emissions are treated.  State of the art "scrubbing" technology is an expensive process in which emissions pass through chemical baths that absorb CO2 limiting ultimate emissions to acceptable limits.  The European Commission has funded a new research project — NANOGLOWA— involving 14 countries to study the feasibility of using nanostructured membranes to capture CO2 emissions instead of chemical baths.  Once the CO2 is captured, the theory is that it could then be stored underground in empty natural gas fields.