Suburban sprawl is weighing on the U.S. economy

America’s suburbs are sprawling again. Last year, single family housing starts rose to 1.123 million, the highest since 2006, according

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Buildings are a bigger contributor to climate change than cars — these start-ups are trying to help

This June was the hottest in American history. The 116-degree heat melted power cables in Portland, Oregon, and smashed previous

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