Activists and policy stakeholders often put forward a single policy action that, they argue, would have broad and beneficial cascading effects, essentially acting as a fix-all for America’s energy troubles. Examples of these include unfettered domestic oil and gas development (“drill, baby, drill”), a price on carbon, a flex-fuel mandate, a clean energy standard, etc.

Last week, we asked what a comprehensive national energy policy might look like. Absent a comprehensive national energy policy, what single policy action, if enacted and implemented, would have the biggest impact on America’s energy landscape?

What single policy action would improve America’s energy landscape most? What single action would do the most damage?