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Examining how California is responding to climate change.

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An inside look into the people and politics of state government.

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A window into health in California.

« Full episode for January 9-11, 2009

Green Building Blocks

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We all know cars and trucks are big emitters of the greenhouse gasses that contribute to global warming. But there's another big source you might not expect: building materials like drywall, steel and cement. That's because manufacturing them requires vast amounts of energy. So, several Silicon Valley start-ups are looking for cleaner solutions -- and some are attracting major venture capital. Reporter: Marjorie Sun

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