Last week's earthquake may have shaken a Virginia nuclear plant more than the plant was designed to withstand. There wasn’t much damage, but, uh, maybe it’s time to retrofit these older East Coast plants, just in case.

Since Energy Star labels have come to mean next to nothing, there are new ones. Look for "most efficient" Energy Star labels to find appliances that meet the highest standards for energy saving.

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Japan passed a bill promising incentives for renewable energy, but companies are waiting for the government to hash out the details before they jump in.

Collars that can tell when, what, and where wild animals eat, sleep, and do anything, really, could improve our understanding of animals like wolves and mountain lions and help us figure out how to … not shoot them.

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What’s the most stylish, least convenient way to let everyone know you’re green? Wear a living cactus on your finger.