Technology
US considers nuclear-powered assault ships
Rocketing fuel prices make nuclear-powered warships an attractive option for the US navy 鈥� but how safe are they?
News
Earth
Have we underestimated total oil reserves?
News
Earth
Algae oil promises truly green fuel
News
Physics
Exotic nitrogen could offer safe rocket fuel
News
Earth
The greening of Silicon Valley
Features
Earth
Interview: Bring on the solar revolution
Opinion
Earth
‘Self-digesting’ biofuel plants could ease food crisis
News
Earth
To make the most of wind power, go fly a kite
Features
Earth
When burning gas is good for the planet
News
Earth
Fuel prices hit US drivers where it hurts
As oil prices rocket, a dramatic drop in greenhouse-gas emissions may result as people opt for smaller, more fuel-efficient cars
News
Earth
Women farmers face eviction in biofuels boom
News
Earth
‘Flammable ice’ could be mined for fuel
News
Earth
Harnessing river whirlpools puts energy on tap
News
Earth
Nuclear super-fuel gets too hot to handle
News