Question 8 (Mandatory) (8 points) = @ > In many talks on the environment, the concept of externality costs is frequently discussed. For energy, carbon dioxide is the most cited example. What is the broad definition of this idea? Mankind will pay higher prices in the future related to a diminishing fossil fuel ~ resource. () There are always unintended environmental consequences to our actions. ) Current price of energy does not reflect its true cost to society and the ~ environment