From the Washington Times:

It doesn’t matter where you buy it. It doesn’t matter what you drive. It doesn’t even matter which octane you choose. Every gallon of gasoline combusted in our vehicles emits a chemically consistent 19.4 pounds of carbon dioxide. Congress wants to change that — and it isn’t about to let a silly thing like fuel science stand in its way.
You’ve heard of cap-and-trade. Now meet the low-carbon fuel standard (LCFS) — its younger, quieter but just-as-harmful kissing cousin. Cooked up in a California political laboratory over the past decade and being advanced on Capitol Hill by powerful members of both chambers, LCFS has as its goal to force refiners to start producing fuels with a lower-intensity carbon profile. Same price, same power, just with less carbon dioxide coming out of the tailpipe.
Who can be against that?
The laws of science, for starters. It turns out that, short of engaging in outright alchemy, tweaking the molecular profile of refined fuel products isn’t done easily, safely or well. But if an LCFS can’t actually effect a chemical change in the carbon makeup of our fuels, how can its supporters claim it will reduce the amount of carbon dioxide they emit?
The answer is that LCFS isn’t about making the fuels on which we rely today better, cleaner or more energy-efficient. It’s about making those fuels scarcer, more expensive and less available to those who need them. Achieve that, the logic goes, and the alternative energy technologies that can’t compete right now — for one, because they don’t exist in commercial quantities, if at all — will have a fighting chance in the future of gaining market share from the reliable, all-too-affordable energy sources that dominate our markets today.

The rest here.