When might we expect exciting alternative technology to become our ho-hum everyday energy supply?
Offshore drilling is mostly what we hear about, but America has a lot of oil that might one day prove useful.
With tax credits and the credit crunch, the renewable energy market is being pulled in two directions.
However, investment in energy efficiency and renewable-energy strategies could create 2 million jobs in two years.
Wind energy is renewable energy. But there are misconceptions about what makes the wind industry turn.
Supermarkets around the world are adding food labels that warn of the environmentally unhealthy bits in the food we buy.
Genetic analysis of a bacteria found in a hot spring could help produce clean-burning hydrogen gas for fuel cell cars.
The outer structure of the stunning "Water Cube" at the Beijing Olympics is made of air-filled polymer cushions that require 200 times less energy than glass.
Go fly a kite, say researchers who think this simple two-thousand-year-old pastime could be a viable alternative to expensive wind turbines.
The strange behavior of quantum physics might seem too unpredictable to rely on for our energy needs, but new technologies hope to capitalize on its very strangeness.
A third of energy consumption is in the home. Many opportunities exist to make houses more efficient, as a new European initiative plans to show with several demo homes.
An Australian company has a plan to stick a kilometer-high chimney on top of a five-kilometer-wide greenhouse to make electricity.
The electricity for a small city could be generated from the wind being sucked up an artificial tornado.