Environmental Defense Fund's Colin Leyden critiques policy rollbacks, urging bipartisan energy build-out and next-gen ...

For years, the buzzwords on the lips of environmental advocates have been geothermal energy, as in energy pumped from deep within the Earth’s aquifers to be used for heating, cooling and electricity ...

Early next year, the Texas grid will get its first dose of clean power from underground — by means of a “battery” buried in the rock. On Tuesday, the San Miguel Electric Cooperative announced a deal ...