A spectrally selective approach could let tablets, e-readers, and windows turn light into power.
Cheap natural gas means U.S. electricity producers are buying less coal. But the rest of the world is buying more.
Decades of increasing vehicle weight may be coming to an end as cars get more lightweight materials.
Acting to solve our climate problem will take big investment and a strategic approach, says Jane Long.
Obama is calling for a doubling of energy R&D funding, but where will he find the money?
A tiny startup called Ambri wants to transform our energy system with massive liquid-metal batteries.
Two men who created the iPod and iPhone founded Nest and injected new technology into the humble thermostat. Now they have their sights on the rest of your house.
Intentionally engineering Earth’s atmosphere to offset rising temperatures could be far more doable than you imagine, says David Keith. But is it a good idea?
A technology for generating electricity from coal without pollution achieves a milestone.
New technology, including better control algorithms and communications, is improving the performance of wind turbines.