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Jae O. Haroldsen

Jae O. Haroldsen has covered the HVAC&R industry for three years with a focus on natural refrigerants in residential, commercial and industrial applications. With her professional civil engineering background, Jae brings a technical lens to her reporting. As a staff writer for NaturalRefrigerants.com, she covers global policy shifts, emerging technologies and industry trends that are shaping the future of cooling.

2026-06-29Data CentersNorth America

ATMO America: M&M Carnot CO₂ Chillers Cool 1.3MW Heat Load at Evocative’s California Data Center

And image of Jay Smith, Vice President of Operations and Engineering at Evocative, presenting at ATMO America. He discussed CO2 chillers cooling 1.3MW data center heat load.

2026-06-25Industrial RefrigerationOceania

Transcritical CO₂ Refrigeration Expands Across Australia and New Zealand

An image of transcrtical CO2 market penetration in Australia and New Zealand.

2026-06-24Industrial RefrigerationNorth America

ATMO America: Zero Zone Supplying 91TR CO₂ System for Nashville Grocery Fulfillment Center

And image of Alessandro Silva, Senior Application Engineer at Bitzer, and John Collins, Director of Industrial Sales, participating at ATMO America 2026. The two highlighted a CO2 refrigeration system for a Nashville fulfillment center.

2026-06-23Commercial RefrigerationWorld

Epta Focuses on Providing Integrated Sustainable Refrigeration Solutions

Epta Zenith. Photo credit: Epta

2026-06-22Commercial RefrigerationNorth America

ATMO America: Buc-ee’s Opens Its First Travel Center with CO₂ Refrigeration in Ohio

An image of Scott Ray, Director of Design, Construction and Procurement at Buc-ee's, presenting at ATMO America 2026. The company is moving to using CO2 refrigeration as a prototype for new builds.

2026-06-18Heat PumpsNorth America

ATMO America: Flow Environmental Systems CO₂ Heat Pumps Help Major American Tech Company Decarbonize

An image of Tom Brown, Senior Product Manager at Accel Air Systems, presenting at ATMO America 2026.

2026-06-17PolicyEurope

U.K. Government Delays HFC Phasedown Reform

An image of Great Britain's flag against a building backdrop. U.K.'s DEFRA delayed HFC phasedown reform.

2026-06-10Commercial RefrigerationNorth America

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

The independent grocers panel at ATMO America 2026

2026-06-04Heat PumpsEurope

Caverion Commissions 12MW of Fenagy’s 30MW Hydrocarbon Heat Pump System for District Heating in Finland

An image of Caverion commissioning the heat pump system in Kajaani. Hydrocarbon heat pumps cool the data center and reuse waste heat for district heating.

2026-06-03Heat PumpsEurope

Nusku Targets Residential U.K. Gas Boiler Replacements with Tank-Integrated R290 Heat Pump

An image of Nusku's tank-integrated R290 heat pump for residential applications.