It's all linked because fracking produces both gas and oil. But I agree coal is the biggest culprit. That's why the tax should be on carbon, not a specific fuel

It's all linked because fracking produces both gas and oil. But I agree coal is the biggest culprit. That's why the tax should be on carbon, not a specific fuel. But the tax should be designed to be dynamic somehow to act as a stabilizer to keep prices from going to high or to low too fast.