Mitt Romney and Barack Obama draw up battle lines over US wind farm tax credits.
North Carolina is dealing with sea level rise by banning science. California is doing something else: actually making plans.
Small group of 17 elements is in extraordinary demand, but potential wealth must be balanced against environmental responsibilities.
The military understands the importance of reliable renewable energy. Why doesn’t the GOP?
Warmer climes and a shrinking population could force inter-species breeding.