Energy

Ted Cruz's half-baked position on ethanol

U.S. uses more electricity on Christmas lights than Ethiopia does all year

U.S. Christmas decorations use more energy than many nations do in a year

CO2 emissions stall, even as economy grows

Lamp powered by a single plant can stay lit for hours

The clean energy breakthroughs that Silicon Valley billionaires are betting on

Why the Paris climate talks might actually work

How to 'cool down' sunlight

Solar Sunflower harnesses power of 5,000 suns

Help crowdfund the world's first steam ring generator

How to make your refrigerator more efficient

The universe is dying slowly

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