At an EC Environment Council meeting held in late December 1998 agreement was reached on a new regulation on ozone depleting substances that will soon ban the continued use of CFCs and HCFCs in building refrigeration and air conditioning systems. However, there are also environmental concerns about some replacement refrigerants which has led to interest in more innovative and potentially less environmentally damaging forms of cooling. BRE has been investigating and reviewing some of these technologies as part of a DETR funded research project. 
This Site gives a summary of current and ongoing Research in this area.