By purchasing solar panels for their homes, a growing number of folks are opting for what they think is the Green-friendly option. But according to the Associated Press, there is a dirty side to solar that is just now being realized as manufacturers are producing millions of pounds of polluted sludge and contaminated water in the process of making solar panels. Making matters worse is that to dispose of the material, companies must often transport it by truck or rail far from their own plants to waste facilities hundreds and even thousands of miles away. Since this additional energy is not typically considered in figuring out solar’s environmental impact, this is not sunny news for solar’s Green advocates.