Green Options

People of faith from around the globe are taking the lead on global warming solutions. Following on the heels of an alliance among some U.S. faith leaders to fight global warming, the Vatican has announced plans to install a giant solar power system.

The 1,000 solar panels will adorn the football-sized roof of the Paul VI audience hall, one of the top energy guzzlers in the sovereign city state. The solar system [...]

Heliotube: Photo source: Practical InstrumentsSilicon solar cells are a pretty established technology. The panels have become more or less standardized to a regular form factor so that installers can use the same mounting hardware regardless of whose panels are being used. Big corporations like Wal-Mart and Google are readying large installations of panels that will produce enough electricity to rival a small power plant. Manufacturers are developing the

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