Hydrocarbons 21: U.S. Nonprofit Launches NatRef Technology Library. “The North American Sustainable Refrigeration Council (NASRC), a 501c3 nonprofit collaborating with the supermarket industry to advance the adoption of natural refrigerants, has launched, for a limited time, a free online library of audio/slide presentations showcasing natural refrigerant technology for both new and existing supermarket facilities…. NASRC has also released a resource library, which includes ‘a collection of tools and educational resources to help the supermarket industry, policymakers, environmental stakeholders, and interested individuals learn about and contribute to the advancement of natural refrigerants in supermarket and food retail applications.'” Here’s a bit of an overview of natural refrigerants.