In a 2006 Rolling Stone interview, Al Gore infamously likened the practice of extracting oil from tar sands to "junkies find[ing] veins in their toes" to inject heroin. Gore's image simply extends to its logical conclusion George Bush's 2006 State of the Union "addicted to oil" metaphor. Clean, renewable energy represents a healthy cure for petro-addiction. Tar sands, which increase the carbon intensity of petroleum extraction, represent an exacerbation of the climate-changing addiction--kind of like trying to cure heroin addiction by injecting arsenic.