Be green…or else

San Francisco Chronicle article on how the City by the Bay is aiming to become one of the nation’s first large cities to require that new, privately developed buildings meet rigorous standards of environmental friendliness.

Green buildings minimize environmental impacts with features such as natural lighting, solar power, low-flow water fixtures, no-flush urinals that use a chemical trap instead of water, and even use of nontoxic paints, glue, carpets and varnishes.

A popular new product is an elevator that produces electricity as it descends.

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