The US Military is also doing more than just replacing energy wasting light bulbs:
Military going green to save lives, money
"(CNN) -- In 2010 alone, there were roughly 1,100 attacks on U.S. fuel convoys. This has cost the men and women of our armed forces dearly.
Military officials recently reported that more than 3,000 uniformed soldiers and contractors died while protecting such missions in Iraq from 2003 to 2007. But new Pentagon initiatives could dramatically reduce our battlefield fuel demand through the use of new clean energy technologies, helping save lives and stretch ever-scarce defense dollars.
The U.S. Department of Defense is one of the world's largest institutional energy consumers. Using more than 300,000 barrels of oil daily, the U.S. military consumes more petroleum products than three-quarters of the countries in the world.
In fiscal year 2008, energy cost the department about $17.9 billion. Leaders in the Pentagon, though, are up to the challenge."