City officials say the shift to 100-percent renewable energy is a way to save cash, not the planet.
Did the iPhone cleanse change my life? No. Was it difficult? Not remotely.
Utility companies claim solar-powered homes are raising everyone else's electric bills.
Scientist Ken Caldeira explains.
Greens hoped that Chief Justice Roberts would continue a recent green streak. Their hopes were just dashed.
Japan has spent nearly $2 billion for coal plants -- and they're calling it all "climate finance."
A new paper argues that it's now possible to bring power to those who lack it in a way that reduces climate pollution.
The tech giants have ambitious plans for massive new complexes, but they haven't yet figured out smart ways of moving their workforces in and out.
Here's the latest evidence.
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