Texas

===Greenhouse gases===
{{main|Climate change in Texas}}
{{As of|2017}}, Texas emitted the most [[greenhouse gas]]es in the U.S.<ref name="eia17">{{cite web |title=Rankings: Total Carbon Dioxide Emissions, 2017 |url=https://www.eia.gov/state/rankings/?sid=TX#/series/226 |publisher=U.S. Energy Information Administration |access-date=January 14, 2020 |date=2017}}</ref> {{As of|2017}} the state emits about {{convert|707|e6t|e9lb|abbr=off|sp=us|order=flip}} of carbon dioxide annually.<ref name="eia17" /> As an independent state, Texas would rank as the world's seventh-largest producer of greenhouse gases.<ref name="GH2">{{cite news |title=Texas No. 1 producer of greenhouse gases |url=https://www.dallasnews.com/sharedcontent/dws/news/texassouthwest/stories/060307dnnatemissions.3c1df3a.html |agency=[[Associated Press]] |newspaper=The Dallas Morning News |date=June 3, 2007 |access-date=June 11, 2008 |url-status=dead |archive-url=https://web.archive.org/web/20080919052620/http://www.dallasnews.com/sharedcontent/dws/news/texassouthwest/stories/060307dnnatemissions.3c1df3a.html |archive-date=September 19, 2008}}</ref> Causes of the state's vast greenhouse gas emissions include the state's large number of [[Fossil fuel power plant|coal power plants]] and the state's refining and manufacturing industries.<ref name="GH2" /> In 2010, there were 2,553 "emission events" which poured {{convert|44.6|e6lb|t|abbr=off|sp=us}} of contaminants into the Texas sky.<ref>{{cite web|access-date=January 16, 2021|title=Living, and coughing, downwind of Texas smoke stacks|url=https://phys.org/news/2011-11-downwind-texas-stacks.html|website=phys.org|agency=Agence France-Presse}}</ref>