What else should the Montreal Protocol do to protect the climate?
HCFCs need to be replaced by substitute chemicals that are more climate-friendly, and the refrigeration and air conditioning equipment in which they are used needs to be redesigned to improve energy efficiency. Substitute chemicals with lower Global Warming Potentials (GWPs) than HCFCs exist and are expected to be available to replace most uses of HCFCs. Further regulation will help create incentives for continued development of these climate-friendly substitutes. Improving energy efficiency is the fastest, cheapest, and most effective way to fight climate change, because it means fewer GHG emissions from power generation. Refrigeration and air conditioning equipment has grown more and more energy efficient over the last 30 years, in some cases using 65% less energy than equipment manufactured in the 1970s. The accelerated HCFC phase-out could help spur a similar jump in energy efficiency as part of the transition out of HCFC-based equipment. Argentina and Brazil, as well as other Part
