This review considers whether flame retardants affect heat release, which is a critical issue to assess to determine whether adding flame retardants decreases fire hazard.1 Source: Hirschler, Marcelo M. “Flame retardants and heat release: review of data on individual polymers.” Fire and Materials 39, no. 3 (2015): 232-258.,2Source: Hirschler, Marcelo M. “Flame retardants and heat release: review of traditional studies on products and on groups of polymers.” Fire and Materials 39, no. 3 (2015): 207-231.