Unconventional gas impacts, emissions edition, in a single shocking graph. US energy related CO2-emissions are back to 1990 levels in 2012, thanks mainly to (unconventional) gas substituting for coal.
The data are from the U.S. Energy Information Administration.
The chart appeared here, where you also find some more analysis and links.
Our previous posts on unconventional gas: The unconventional gas revolution and its consequences I. and another on the economic consequences.