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What are the most eco-friendly nuts?
A reader wonders what to put in his trail mix. Umbra gets nutty.
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This tool could help Montreal cyclists route around bad air
A Google Maps mashup overlays air pollution data on the city street grid so bikers can go easy on their lungs.
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The smog that texted me
A new Sierra Club service will message you when the air gets really bad in your area.
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New EPA carbon rules would save thousands of lives, science says
The Obama administration's proposed rules for power plants could save nearly 5,000 lives a year in the U.S. alone.
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Seattle’s mayor gums up Shell’s Arctic drilling plans
The oil giant wants to park its Arctic drilling rigs in Seattle's port, but the city is throwing up roadblocks.
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Could wildfires undermine California’s grand climate goals?
California has the most ambitious climate plan in the nation, but if it loses too many trees to fire, it will have a hard time meeting its targets.
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Farmers are watering your food with fracking chemicals
Chevron is selling fracking wastewater to Central Valley farmers to grow food. Dangers seem limited right now -- but let's be more careful and transparent.
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Nightmare school district serves students old-ass meat
The six-year-old pork roast could've served a term on the Senate. Grossed out yet?
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What’s the greenest megacity? Hint: Not NYC
A look at megacity "metabolism" reveals how many resources these urban hubs devour and which ones could use a diet.
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Think you could hack it as a farmer? Read this first
Before you go buying a farm, there are a few things you need to consider.
