Oil won't run the world forever, but it will for the next few decades. What's the smartest way to get from here to a greener energy economy? by Paul Roberts
Where does U.S. energy come from, and where does it go? by Fathom Information Design
Nuclear power is risky, but it's also an essential source of clean energy. Two new reactor designs can make it safer by Kalee Thompson
Our dependence on big systems--big oil, big coal--steers us away from little ones, such as biofuel made from garbage, that are transforming communities in other countries
by Brooke Borel
Satellites that capture light from the sun and beam power back to Earth by Corey Binns
Human waste gives off gas that happens to be an excellent, cheap fuel. Will the developed world ever welcome the power of sewage? by Hillary Rosner
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.