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lighting
Cleantech
This lamp absorbs 150 times more CO2 than a tree
Cleantech
One Million Lights trades kerosene for solar in developing countries
Cities
The spookiest horror film about energy waste you’ve ever seen
Business & Technology
China bulb ban will eliminate 1 billion incandescents annually
Cities
Light pollution is stealing our night sky — here's how to get it back
Climate & Energy
Zero-energy lighting for poor communities requires only water and bleach
Shining a light on energy efficiency
Business & Technology
Why the next light bulb you buy will last 22 years