This paper examines how the replacement of current products with higher energy efficiency products can contribute to reduced greenhouse gas emissions, using air-conditioning and refrigeration equipment as a case study. The paper illustrates that the use of higher energy efficiency equipment has a greater effect on the environment than emissions of greenhouse gases by the equipment. By comparing current and older equipment, the paper shows that small variations in product efficiencies have a greater effect on greenhouse gas creation than do large variations in the global warming potentials of gases used by the equipment. Consideration is also given to current industry practices which minimize greenhouse gas emissions from equipment during normal operation and maintenance. The paper concludes that the utilization higher energy efficiency products is, and will continue in the future to be, a feasible means of reducing greenhouse gas emissions and one which yields greater gains than efforts to limit direct emissions from equipment.
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