With no extension in wind PTC "yet," the expiration of the Megatons for Megawatts program coming in less than four weeks, and the Keystone Pipeline all but officially opened with a ribbon-cutting ceremony, the U.S. may not have the war on carbon as front and center as many are led to believe. This means coal, an out of favor energy resource due to environmental concerns, may not have the Fat Lady singing yet. That suggests coal players are still in the energy game and could have more upside, a view strengthened by China's move to allow more babies per family. This has me thinking names like Arch Coal (NYSE: ACI), Peabody Energy (BTU) and Walter Energy (WLTGQ) could benefit from higher exporting of coal to meet growing global energy demand and an increased need for housing to accommodate larger families in China.