Fuel farming produces twice the CO2 of oil based fuel too.  And uses titanic amounts of water.

What is left that will provide transportation and reduce costs.  Plugin hybrids charged up on a renewable smart grid.  Plugin bikes with massive buildout of bike lanes along side existing highways.  Electric mass transit.  

Peterbilt has hybrid semi tractors now, add new inexpensive high capacity foam lead acid graphite batteries to make them plugin, and charge lanes on the highway for long haul.  Freight trains are already hybrid.  Add electric rail power.

Give up gas guzzlers, your time on earth is nearly over.  Blast off for Mars, it needs GHGes.  Cheney can be your emperor.

I have been writing to the Montana Gov for the last few years advocating wind instead of his pet project, coal to liquid.  No response.

And finally, CCS (carbon capture and storage) has so many extra problems that it is near impossible.  That was the big environmental aspect of "clean" coal.