1. Commodity Subsidies in the United States Totaled $223.5 Billion from 1995–2019;Environmental Working Group;EWG's Farm Subsidy Database,2019
2. Populist Politicians Exploit E.U. Aid, Reaping Millions;Gebrekidan Selam;New York Times,2019
3. The Great Carbon Trading Scam;Juniper Tony;Guardian,2007