Heat pump the brand name Freon, a trademark of DuPont. Its manufacture is now banned or severely restricted by the Montreal Protocol of August 1987 because of the damage that CFCs cause to the ozone layer if released into the atmosphere. One widely adopted replacement refrigerant is the hydrofluorocarbon (HFC) known as R-134a (1,1,1,2-tetrafluoroethane). Heat pumps using R-134a replaced R-12 (dichlorodifluoromethane) and have similar thermodynamic properties but with insignificant ozone depletion potential and a somewhat lower global warming potential. Other substances such as liquid R-717 ammonia are widely used in large-scale systems, or occasionally the less corrosive but more flammable propane or
1987 (What the Fuck Is Going On?) 1987 (What the Fuck Is Going On?) 1987 (What the Fuck Is Going On?) is the debut studio album by British electronic band The Justified Ancients of Mu Mu (the JAMs), later known as the KLF. "1987" was produced using extensive unauthorised samples that plagiarized a wide range of musical works, continuing a theme begun in the JAMs' debut single "All You Need Is Love". These samples provided a deliberately provocative backdrop for beatbox rhythms and cryptic, political raps. The album was released to mixed reviews, but was a commercial success. Shortly after independent release in June 1987, the JAMs