A report released last week from the consulting firm, McKinsey and Co., outlined the enormous opportunities for reducing energy use in the United States. The country could reap $1.2 trillion in potential savings by 2020, the consultants found, after an initial investment of about $520 billion. "Efficiency and conservation have global benefits," said Michael Webber, an energy expert at The University of Texas at Austin, citing the economic, environmental and security advantages of reducing energy use.
The New York Times
Governments can promote energy efficiency