Why do people believe that taxing this big companies for producing CO2 emissions will work? They can either invest shareholder money into reducing CO2 emissions, or, they can pass the added cost onto the consumer. From a big business point of view, why would they spend money to reduce the emissions, when they are already losing the money through the tax? They could just pass the cost on? It simply doesn't make sense to me, there is no incentive for them to spend the money.