Hundreds of train cars extend alongside a road outside of Gillette, Wyo., overflowing with coal. Trucks haul the same energy resource from a large pit on the other side of the road. Gillette is commonly called the coal capital of the U.S.
"Nobody is here in this part of the world. It is so empty. So empty," laughs Sebastian Peter, who traveled to be here from Bangalore, India. His team, Breathe, is one of the finalists in the NRG COSIA Carbon XPRIZE competition.