Earth
Material that turns heat to power gets efficiency hike
Adding the right metal to a thermoelectric compound can more than double its efficiency 鈥� paving the way for heat wasted by engines and computers to be recovered
News
Earth
Interview: Driving towards the 100-mpg car
News
Earth
Chemical breakthrough turns sawdust into biofuel
News
Earth
Who needs coal when you can mine Earth’s deep heat?
News
Earth
Nanotubes bring artificial photosynthesis a step nearer
News
Earth
Organic dye lets window panes harvest the Sun
News
Earth
Contaminated US site faces ‘catastrophic’ nuclear leak
News
Earth
Wind power sails ahead in UK as US solar plans freeze
News
Earth
Cold war ‘caterpillar drive’ could harvest sea power
Features
Earth
Comment: Kicking the oil habit
Don't imagine that pumping more oil will get us out of our current mess, argues Matthew R Simmons - dealing with the addiction is the only option
Opinion
Earth
Oil: The final warning
Features
Earth
New technologies promise biofuel ‘plan B’
News
Earth
Time to go ahead with Nevada nuclear dump?
News
Technology
US considers nuclear-powered assault ships
News