Energy

How trees combat the urban heat island effect

Dam goats scale dam rocks in search of salt

How you can visit the Shire ... in Guatemala

The Negawatt is ready for its close-up

British cemetery could be illuminated by energy generated by the deceased

3 'miracle' car concepts that will never happen

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

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