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Tans: Many scientists agree on climate change

Pieter Tans, leader of the Carbon Cycle Greenhouse Gases Group in the Global Monitoring Division of NOAA's Earth System Research Laboratory in Boulder, Colo., explained why many scientists agree on climate change.
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Pieter Tans, leader of the Carbon Cycle Greenhouse Gases Group in the Global Monitoring Division of NOAA's Earth System Research Laboratory in Boulder, Colo., explained why many scientists agree on climate change.

Reporter : Greg Fishel
Photographer : Richard Adkins
Posted 2015-03-25T12:44:24-0400 - Updated 2015-03-25T12:44:24-0400