It's not just the rainfall that is endangering Houston's citizens -- it's all that pavement.
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A new study found air pollution around Alberta's tar sand operations to rival a major city.
Keep your cellphone-wielding flippers to yourself, says NOAA.
See photos of the stunning UNESCO World Heritage sites that are under threat.
A new study links bad air quality to increased risk of heart disease.
Major oil companies are anything but consistent on the biggest challenge of our time.
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How can you cut home energy use while you're on vacation? Advice maven Umbra Fisk offers tips just in time for summer.