Changes

Carter was a speaker at the [[International Conference on Climate Change (2009)]], organized by the [[Heartland Institute]]<ref>"[http://www.heartland.org/events/NewYork09/speakers.html Speakers]," Heartland Institute website, accessed January 2009.</ref> Carter is also listed as a speaker for the Heartland Institute's June 2009 [[Third International Conference on Climate Change]].<ref>Heartland Institute, [http://www.heartland.org/events/WashingtonDC09/speakers.html "Speakers"], Heartland Institute, accessed May 7, 2009.</ref> In all, Carter has been a speaker at six of Heartland's climate change conferences.<refname="shill">{{cite web |url= http://www.abc.net.au/unleashed/3834220.html |title=Dollars, documents and denial: a tangled web - The Drum Opinion - In the last 48 hours a number of documents from the US think-tank the Heartland Institute have been published on the intertubes. (Australian Broadcasting Corporation) |first=Graham |last=Readfearn |work=abc.net.au |year=2012 [last update] |quote=Carter has also been a speaker at six of Heartland's climate change conferences. |accessdate=19 February 2012}}</ref>