U.S. investment in cleaner fuels technology beginning to pay off

Published 10/08 2010 01:06PM

Updated 10/03 2014 07:15AM

The United States and other nations say they are committed to a greener future. That commitment has been helped in recent years with millions of dollars of investment in cleaner fuels technology – and as VOA’s Rebecca Ward reports – the investment seems to be paying off:




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