CO<sub>2</sub> emission per capita per year per state, based on data from  <a rel="nofollow" class="external text" href="http://www.epa.gov/statelocalclimate/documents/pdf/CO2FFC_2012.pdf">US Environmental Protection Agency</a> in 2011.
<a href="//commons.wikimedia.org/wiki/User:Ali_Zifan" class="mw-redirect" title="User:Ali Zifan">Ali Zifan</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>; Map is based on <a href="//commons.wikimedia.org/wiki/File:Blank_US_Map.svg" class="mw-redirect" title="File:Blank US Map.svg">here</a>.