Products don’t come with a label measuring how much oil was burned in their production. Even if the manufacturer wanted to know, tracing that detail through the

Products don’t come with a label measuring how much oil was burned in their production. Even if the manufacturer wanted to know, tracing that detail through their entire supply chain is really difficult. Preventing fraud is also very challenging. Whereas if you tax at extraction this is automatically take into account at every step of the supply chain. The market does all the hard work for you.