Latest Articles
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Genetically modified seed research: What’s locked and what isn’t
When corporations patent genetically engineered seeds, how tightly do they tie the hands of scientists trying to test their safety?
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Now there are CSAs for art
Members invest an initial sum and receive whatever the artists are able to produce based on that investment.
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An American in Denmark: Close encounters with European bicycle culture
In Copenhagen, bikes are as common as vacuum cleaners -- and the people who ride them are bloody amazing.
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Giant Galapagos tortoises, once extinct in the wild, retake island from invasive rats
118 juvenile tortoises have been let free on Pinzon Island. And they may just survive.
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Costa Rica is turning its zoos into urban parks
The zoo's current inhabitants will be placed in forest preserves or wildlife sanctuaries.
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Follow your poop’s magical journey through the sewer
The flush is only the beginning! Your doo-doo goes on a long, strange trip that ends back in your mouth.
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Ask Umbra: What’s so bad about fracking?
A reader asks for the facts on hydraulic fracturing. Umbra drills down.
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Could utilities’ future be selling light instead of electrons?
The new business model would give utilities incentive to invest in energy efficiency.
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Time magazine catches on to the childfree movement, misses the green angle
A cover story on "The Childfree Life" recognizes the economic, social, and personal upsides to skipping parenting, but neglects to mention the environmental benefits.
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Greenhouse gas emissions explained, in seven balloons
In 2010, human activity caused 50 gigatonnes of greenhouse gas emissions. Here's how the sources compare.
