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PBS NewsHour

News Wrap: Carbon Dioxide Level Hits Grim Milestone

4:53

In other news Friday, the National Oceanic and Atmospheric Administration reported that carbon dioxide in the Earth's atmosphere has reached a level not seen in millions of years. Also, the new skyscraper at Ground Zero in lower Manhattan now stands at its full height. The new structure will be the tallest in the U.S.

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Previews of PBS NewsHour3

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.

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