Advanced biofuels, more-efficient vehicles, and solar power top the most notable energy stories of 2007.
A portable system converts biowaste into jet fuel and diesel for the military.
The energy bill signed this week will have an enormous impact on biofuels.
Politics continue to complicate energy policy.
One photovoltaic wire could power a sensor; arrays could yield cheaper electricity.
Gregory Stephanopoulos explains challenges in converting biomass to biofuels.
The global culture of valuable, fresh thinking.
Making ethanol from corn is expensive. Better biofuels are years away from the gas tank. Farmers are reluctant to change their practices. But do we really have any alternative to biofuels?
Nanosolar is shipping printed solar cells.
Researchers are harnessing solar energy to convert carbon dioxide into carbon monoxide, which can be used to make fuels.