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Archivo: Major greenhouse gas trends

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Description: This image is a work of the National Oceanic and Atmospheric Administration, taken or made during the course of an employee's official duties. As works of the U.S. federal government, all NOAA images are in the public domain.
Title: Major greenhouse gas trends
Credit: NOAA's Annual Greenhouse Gas Index: http://www.esrl.noaa.gov/gmd/aggi/aggi.fig2.png
Author: US Govt
Permission: Public domain
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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