The pumps, however, both grind up the fish and disrupt the tidal flows, thus threatening to kill native species and inviting invasive ones.

ECONOMIST: Water in California

Nutrient overloads lead to low levels of dissolved oxygen in the water, which can kill fish.

WSJ: Connecticut Seaweed: Life Down on the Kelp Farm

The U.S. Fish and Wildlife Service conservatively estimates that wind turbines already kill 440, 000 birds in the United States each year, even while providing just a tiny portion of U.S. electricity.

FORBES: Obama Unites Global Warming Alarmists, Skeptics In Presidential Debates