In Fairbanks, Alaska, residents are using wood stoves to heat their homes during the frigid winter months. But, smoke created by these wood burners is contributing to some of the worst air pollution in the country. Cathy Cahill discusses air quality in the Last Frontier.
Tomatoes grown on organic farms contained significantly higher levels of vitamin C, sugar and lycopene than their conventionally grown counterparts, a study finds. Turns out, organic farming techniques "stress out" the plants in ways that make them more nutrient dense.
In Charlotte, N.C., a secret bunker rests quietly below a radio station. Built in 1963, it was part of a federal network designed to provide emergency communications in case of a nuclear attack. With a new slew of potential threats to contend with, FEMA has revived the idea.
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