U.S. EPA Announces Final Revision of Technology Transitions Rule, Delaying Use of Low-GWP Refrigerants

ATMO America: Experts Chart Path for Natural Refrigerants in HVAC

A diverse panel of HVAC experts, who are helping to chart a path for natural refrigerants like CO2 (R744) and propane (R290) to be used in HVAC applications in the U.S., described their approaches at the ATMOsphere (ATMO) America 2026, held June 2–3 in Tarrytown, New York. (ATMOsphere is the publisher of NaturalRefrigerants.com.) Read the full story on NaturalRefrigerants.com. [https://naturalrefrigerants.com/news/atmo-america-experts-chart-path-for-natural-refrigerants-in-hvac/]

Australia’s National Science Agency Utilizes CO2 Cooling System for New Edge Data Center

The Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia’s national science and technology agency, has opened a new edge data center [https://www.csiro.au/en/news/All/News/2026/May/Vetra-AI-infrastructure] designed to assist in the development of robots and related sensors that uses two air-cooled 100kW (28.4TR) CO2 (R744) chillers for cooling. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/australias-national-science-agency-utilizes-co2-cooling-system-for-new-edge-data-center/]

ATMO America: Independent New York Grocers Embracing CO2 Refrigeration Ahead of State HFC Regulations

A panel of independent New York grocers from the National Supermarket Association, Aurora Grocery Group and Uncle Giuseppe’s Marketplace highlighted the importance of embracing CO2 (R744) refrigeration ahead of the state’s HFC regulations at ATMOsphere America Summit 2026 [https://atmo.org/events/atmosphere-america-summit-2026/]. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/independent-new-york-grocers-embrace-co2-refrigeration/]

ATMOsphere to Host Webinar with Hanon Systems Discussing Its New White Paper on TFA Emissions in the European MAC Sector

ATMOsphere, publisher of NaturalRefrigerants.com [https://naturalrefrigerants.com/], will host a webinar to discuss the findings of a recently published report by Hanon Systems [https://www.hanonsystems.com/En] estimating the amount of trifluoroacetic acid (TFA) generated in Europe by emissions of refrigerants HFC-134a and HFO-1234yf from car cooling and heating systems. The webinar will be held on June 18 at 3 pm CEST. You can register for the event here [https://docs.google.com/forms/d/e/1FAIpQLSf6p6k1i2esnNz0p0SHDQ72-vaAXDAEMYSCVDukJqPJoiHZtw/viewform]. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/atmosphere-to-host-webinar-with-hanon-systems-discussing-its-new-white-paper-on-tfa-emissions-in-the-european-mac-sector/]

Interview: Arneg Korea’s CEO on the Challenges and Opportunities for Natural Refrigerants in South Korea

ATMOsphere, publisher of NaturalRefrigerants.com, estimated that ⁠there were just 10⁠ transcritical CO2 (R744) refrigeration systems installed in South Korea as of December 2025. In this nascent market the leading player is Arneg Korea, which was ⁠founded in 1999⁠ and has been developing CO2 refrigeration technology for the food retail sector since 2008, according to CEO SungKyu Lee.  ⁠Read the full story on NaturalRefrigerants.com⁠ [https://naturalrefrigerants.com/news/interview-arneg-koreas-ceo-on-the-challenges-and-opportunities-for-natural-refrigerants-in-south-korea/]