You claimed that the best way to make oil consumption more eco friendly was by reducing the environmental impact of extracting it, rather than letting high cost motivate consumers to switch to renewables. Now you've backtracked to supporting natural gas to replace coal. It is true that switching from coal to natural gas is a big win for CO2 emissions, but there are clear diminishing returns on that. Since 2005, the US has already gone from 50% coal power to 20%. The problem is that our current levels of oil and natural gas consumption are incompatible with hitting emissions targets. The mere act of burning those fuels at the current rate already puts those targets out of reach -- before even considering the cost of extracting them.