The US is already blessed with some of the cheapest at the pump gas prices. Canadians typically pay X 1.5-to-2 more for gas, and our EU friends from across the pond pay X 2-to-3 more for gas.
Next step is a tax on farts...you know to
reduce GHG emissions & help climate change, due to the cheeseburger diet
And here's a bit more environmental awareness: