Refrigerating and air conditioning systems: dilemmas in the future development

harmful influence of CFC fluids, depletion on the ozone layer and global warming of Earth. Survey on the most applied refrigerants and their potentials for harmful influence on the ozone layer and global warming. Montreal protocol and additional regulations (amendments). Measures for a phase-out of CFCs in Republic of Macedonia, projects, forming of training centers, training courses for good maintenance and servicing of refrigerating and air conditioning systems, equipment for recovery and recycling of refrigerants. The newest alternative refrigerants and their properties. Specifics in application of the new HFC fluids. Natural refrigerants: ammonia, carbon-hydrogen's, carbon-dioxide, water, air. Failing (toxicity and flammability) and advantages in their appliance. New concepts of refrigerating and air conditioning systems. Cross way in the future development of refrigerating and air conditioning systems. Crossing of opposite views and interest on the international level. Missing of strategy in Republic of Macedonia in the field of refrigeration and air conditioning. paradox in R. Macedonia: ammonia refrigerating systems go out of use. (Author)