Latest Articles
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Ask Umbra: Do the costs of LEDs outweigh the benefits?
A reader comes looking for bright ideas about lightbulbs. Umbra turns it on.
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Cultivating an app for how your garden grows
Growstuff lets you track your plantings -- and puts your data to work for a wider community.
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![President Barack Obama]()
![President Barack Obama]()
Obama points out economic downsides of Keystone XL
In his most extensive public comments to date on the subject, the president says that Keystone would create few jobs and raise gas prices for Americans.
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Wide open spaces: How unused parking adds up
Hundreds of thousands of parking spots across the U.S. are vacant, unwanted, and mandatory.
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![wind transmission lines]()
![wind transmission lines]()
The five most important names in renewable energy that you’ve never heard of
The Federal Energy Regulatory Commission is about to make a crucial decision that will affect clean energy projects all around the country.
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Clean energy clash: Solar advocates and conservationists butt heads
As more government land is earmarked for solar and other renewable energy projects, some environmental activists in the West are not happy.
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EV market threatened by spat over charger standards
Two incompatible electric-vehicle charging systems are fighting for dominance, like a replay of the '80s-era battle between VHS and Betamax.
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Company responsible for latest Gulf blowout complains about overregulation
The fire is out at the gas-drilling rig that caught fire in the Gulf of Mexico this week, but a debate about drilling regulations has sparked back to life.
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Watch this mud boil
It's like the planet decided it to take a note from your one friend who can burp on command and thinks it's AWESOME.
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FDA: Free-range chickens should go outside, but not interact with the actual outdoors
Chicken producers need to keep their chickens far from any other animals.
