10.5D Refrigerant 134a is widely used as the working fluid in air conditioners and refrigerators. However, its use will likely be phased out in the future due to concerns about its Global Warming Potential (GWP). Investigate which environmentally acceptable working fluids are under consideration to replace R-134a for these uses in the United States and internationally. Determine the design issues for air conditioners and refrigerators that would result from changing refrigerants. Create an executive summary of your findings with an accompanying appendix including your background research.

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