The 30-year itch

摘要

In His state-of-the-union message last month, Barack Obama said that America needs "an all-out, all-of-the-above strategy that develops every available source of American energy." Mr Obama boasted about a wind-turbine factory in Michigan, America's abundant supplies of natural gas and the millions of acres opened for oil exploration. He urged Congress to pass tax incentives for energy efficiency and clean energy and to end oil-company subsidies.