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PBS NewsHour

Urban Designer on Making Greener Cities

3:18

Urban designer Peter Calthorpe says there is one simple thing cities can do to cool down every summer: plant trees. NewsHour's Hari Sreenivasan spoke with Calthorpe at the Aspen Environment Forum this summer about how cities need to have more vegetation and fewer cars in order to adapt to a changing climate.

Episodes of PBS NewsHour43

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PBS NewsHour

State of the Union 2016

PBS NEWSHOUR offers live coverage of President Obama's speech and the Republican response.

0:20

PBS NewsHour

PBS NewsHour Weekend

Premieres Saturday, September 7, 2013 at 6 p.m. ET.

0:30

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