Wind energy now displaces about 68 million metric tons of global warming pollution each year—as much as is produced by 13 million cars. And wind energy now saves more than enough water nationwide to meet the needs of a city the size of Boston. There is still plenty of room for growth in wind energy, but the pending expiration of the production tax credit threatens the future expansion of wind power. To protect the environment, federal and state governments should continue and expand policies that support wind energy.
America’s reliance on gasoline-powered vehicles has long contributed to air pollution, including global warming emissions, and our nation’s dependence on oil. In the past decade, however, the automobile market has begun to change, integrating new technologies that are dramatically less dependent on gasoline. Hybrid electric vehicles, powered in part by energy stored in a battery, have become increasingly popular.