Home » Research Begins Research Begins April 22, 2009 Reprints No Comments The 1970s spawned research for alternative refrigerants after questions about harmful effects of fluorocarbons arose. Did you enjoy this article? Click here to subscribe to The NEWS Magazine Related Articles Humidity Research Begins in U.S. Homes to Provide Increased Measurable Data July 4, 2008: Humidity Research Begins in U.S. Homes Oct. 3, 2012: HVLS Fan Research Recognized with Fire Protection Research Foundation Medal New ASHRAE Certification Program Pursuit Begins You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why.