The American Council for an Energy-Efficient Economy ranked Germany first and Mexico last in a rating of major economies and energy efficiency.
With their sources of drinking water nearly dried up, the thirsty town of Wichita Falls has incorporated treated wastewater into its water supply.
Experts say El Hierro is expected to become the first island in the world to get all its electricity from wind and water power without assistance from any outside power grid.
University of Cincinnati researchers have designed technology that channels sunlight to dark interior rooms through grids of tiny adjustable cells. The energy can also be stored to power electrical systems.
If new research from Spain can be further developed into a viable model, it could mean great things for tobacco growers worried about the future of their business.
The University of Newcastle plans to build a plant that will test a method of converting carbon emissions to inert "bricks" that could eventually be used in construction.
A new study suggests yes: Since the introduction of the tax in 2008, fuel consumption per person has dropped over 17 percent and the emissions rate has gone down by 10 percent.
An engineer has developed a process that will produce ammonia more cleanly and possibly in enough amounts to provide an alternative energy source.
This week Harvard University unveiled a database of 2.3 million carbon-based materials, including over 35,000 out of which some could eventually match silicon's energy conversion ability.
MIT's Solar System software combines several sources of data to create a map that can predict the annual yield of a panel array installed at a given location.
Silicon trunks and titanium oxide branches mimic the process of photosynthesis by converting sunlight into hydrogen and oxygen, both of which can then be used to power fuel cells.
When both fresh and salty water sources are considered, the US could grow enough algae for up to 25 billion gallons' worth of biofuel, enough to cover one month of the country's yearly fuel needs.
In the 43 years since Earth Day was first observed, the number of Americans who view conscious environmentalism as "very important" has dropped by almost a quarter, according to a new poll.
The impending catastrophe has been fueled by a skewed, institutionally enclosed rationality that is widespread within the business community; the basic principle is that short-term power and wealth are more important than human survival.
Will the natural gas boom revitalize the U.S. economy and provide us energy for 100 years?