Or the planet.
"The biggest problem with solar systems are the chemicals used to turn silicate into gravel used for panels.To produce enough clean silicon, it is necessary to treat with hydrochloric acid, sulfuric acid, fluoride, trichloroethane and acetone. In addition, gallium, arsenide, copper-Indian-gallium diselenide and cadmium telluride are required, which are also very toxic. Silicone powder is a hazard to workers and the tiles cannot be recycled."
Don't sweat it. The above is just for info. I will be 'solarizing' my shed next month, so I will doing my bit for the environment (or otherwise) and China.