We can start on an economically optimal path now, or ignore scholars"Trust, but verify" is long-standing wisdom on international agreements such as treaties. Can a treaty reducing fossil-fuel emissions of carbon dioxide be verified?hip, wait a few decades, and then start on an economically optimal path, which will involve more rapid changes. What is accurate about the effect of this choice on the number of coal miners likely to be fired?"Trust, but verify" is long-standing wisdom on international agreements such as treaties. Can a treaty reducing fossil-fuel emissions of carbon dioxide be verified