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Eco-renovation
Solar power vs. geothermal: Which works better?

In a 'green' home renovation, choosing a heating system comes down to deciding which is better, geothermal or leased solar panels.
Eco-renovation
Two big advantages of closed-loop geothermal systems

Should you install a closed-loop or open-loop geothermal heating and cooling system? The advantages of closed-loop can save money.

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Next week's Wisconsin recall: a test drive of themes for Election 2012

Wisconsin recall election between Gov. Scott Walker (R) and Tom Barrett (D) enters its last furious week. It is a proving ground for the themes and players of the national election in November, analysts say.
Doc Watson, innovative guitarist and 'positive icon' for Appalachian region
Backchannels: The horror in Syria, the cold realities of international action
Decoder Wire: Mitt Romney has won the nomination. What next? (+video)
Decoder Wire: Bob Dylan awarded Medal of Freedom. What does that say about US? (+video)

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Mae Azango has gone undercover to report on female circumcision, a rite of the Sande society in Liberia that is performed on young girls.

Mae Azango exposed a secret ritual in Liberia, putting her life in danger

When journalist Mae Azango wrote about a secret women's circumcision ritual in Liberia, she received death threats.