مؤلف: Pittsburgh, Pennyslvania, USA) Morgan M. Granger (Carnegie Mellon University

The United States produces over seventy percent of all its electricity from fossil fuels and nearly fifty percent from coal alone. Worldwide, forty-one percent of all electricity is generated from co …

The United States produces over seventy percent of all its electricity from fossil fuels and nearly fifty percent from coal alone. Worldwide, forty-one percent of all electricity is generated from co …