Answer
It does not seem reasonable. If no energy is produced, then we would have about $-52.6841$ hundred thousand tons of carbon dioxide emissions. It is impossible to have a negative emission of carbon dioxide.
The reasonable value for the y-intercept is 0: no energy produced, no carbon dioxide emissions.
Work Step by Step
Notice that we have reached a high stage of industrial development and, consequently, a large amount of energy is produced. So, the y-intercept (when no energy is produced) is outside of the scope of the model.
