Over the past several years, CTA’s Refrigeration Group has invested significant resources researching next generation “natural” refrigeration systems for North America. Additionally, CTA continues to work with the U.S. Department of Energy through the National Renewable Energy Lab and the U.S. Environmental Protection Agency’s GreenChill program to advance the knowledge of how these next generation systems perform and can be applied. The result of this significant involvement with natural refrigerants is CTA’s invaluable ability to help supermarket owners make the tough decisions that are right for the environment and for their business by helping them select, implement, install and maintain the system that is right for them now and in the future.