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Ask Umbra on movies to see from the Wild & Scenic Film Festival

Wild and scenic films abounded this past weekend at Nevada City's Wild & Scenic Film Festival. Ask Umbra shares her top films.

California's solar power increasingly Chinese made

The Chinese are moving quickly to fill the photovoltaic market created by the California Solar Initiative.

How solar power is keeping America's hired muscle from getting killed in Afghanistan

Long thought to be the sole domain of quiche-eating pantywaists, solar energy has finally picked up some macho cachet -- by saving lives and dollars in Afghanistan.

Truly sustainable meat eaters choose rabbit [VIDEO]

This week, I visited Marshall Farm, one of the few (if not the only) commercial rabbit producers in Minnesota, where Scott and his family just finished their first year of raising bunnies. Care for a "Sloppy Hoppy"?

In his Wall Street Journal op-ed, Obama moves to the right on regulation

In today's Wall Street Journal, President Obama embraces a conservative frame for the coming discussion about the role of regulation.

Smithsonian exhibit connects art to climate advocacy

Rockman's Icons paintings depict symbols of American power and prestige ultimately undone by an abuse of the powers that willed them into reality.

Using wind energy: You're doing it wrong [VIDEO]

Wind power: It's not just a good idea, it can also help you break your neck!

Smaller SUVs are safer than bigger ones, but walkability trumps all

If you want to be safe, buying a big SUV won't do it. But living in a place where you don't have to drive so much is a sure bet.

What does it mean to ride a bicycle responsibly?

There has never been a unified code of behavior for bicycling, so people have been left to hash it out on the street. With more people riding all the time, that's becoming an issue. So who is really responsible?

Artificial lighting: even worse for your health than it is for the environment

Just in case you need another reason to turn out the lights: It turns out they mess with your head. A new study has found that spending your evenings in a lit room delays and suppresses the brain's production of melatonin, the hormone that regulates your biological clock (and may have all sorts of other health implications as well).