Environmentalists have succeeded in getting many states (and countries) to mandate that some significant portion of energy consumption come from "sustainable" sources. That would be wind, solar and tides. As I have noted previously much of the land suitable for generating the "sustainable" energy is far from population centers where the energy is needed. Now the environmentalists are acting to prevent the construction of high voltage transmission lines to transport electricity to population centers. Environmentalists as a group seem unwilling to sanction any sort of trade studies to determine an optimal solution for protection of both nature and people. Here is an opionion piece from the WSJ exploring this issue.

http://online.wsj.com/article/SB121901822110148233.html