Earth
Republican win corners Obama in key US climate battle
Barack Obama has stalled for years on Keystone XL, the proposed tar-sand oil pipeline. Republican election gains will force his hand
Opinion
Technology
I want to build solar cells thinner than a human hair
Opinion
Earth
Methane cuts won’t buy us time on climate change
News
Bottling Britain’s wind energy
Careers
Earth
EU emissions target isn’t as ambitious as it seems
News
Earth
What would a world without fossil fuels look like?
Features
Earth
Lighting cities with cheap, glaring LEDs is a dim move
Opinion
Space
One Per Cent
News
Physics
Physics Nobel won for invention of blue LEDs
News
Physics
Snowflake-shaped networks are easiest to mend
Power grids and other networks with the branching quality of snowflakes are easiest to fix when damaged links can't simply be restored in the same place
News
Technology
Sunflower solar harvester provides power and water
News
Earth
UN ready for climate change talks in New York
News
Technology
Temperature-driven clock sparks new kind of generator
News
Earth
China clamps down on dirtiest coal to curb pollution
News