About Us

Accelerate24.news is a 24-hour global website providing up-to-the-minute news on sustainable cooling and heating, with a focus on natural refrigerant-based technologies. Leveraging the expertise of our journalists and analysts in North America, Europe and Japan, Accelerate24.com covers in one place what is found on R744.com, Hydrocarbons21.com and Ammonia21.com, the leading websites on CO2, hydrocarbons and ammonia over the past decade.

Accelerate24.news and our other websites deliver news and information on natural refrigerant technology’s efficiency and commercial viability. Our readers include end users, contractors, manufacturers and other stakeholders building and working with natural refrigerant-based HVAC&R systems. Our readers’ job titles encompass CEOs, Technical Directors, Senior Management, Sustainability Directors and other decision-makers.

By providing up-to-date news and information on natural refrigerants, the websites enable the faster adoption of natural refrigerant technologies and, ultimately, a more sustainable future. This applies to all application sectors, including commercial, industrial and residential. 

Accelerate24 and affiliated websites are brought to you by shecco, the worldwide experts in natural refrigerant news for over 10 years. shecco also publishes Accelerate magazines and organizes ATMOsphere global conferences.

The Team

shecco is headquartered in Brussels, Belgium, with subsidiary offices in New York, Tokyo and Sydney. Our team includes a global network of dedicated journalists who deliver global news on sustainable HVAC&R and natural refrigerants from sources in industry, government and academia and by covering key tradeshows.

Marc Chasserot is co-founder and CEO of shecco, an independent market development company focused on accelerating the adoption of natural refrigerants through websites, magazines, conferences and market research around the world. shecco launched in 2006 with www.R744.com, the industry-leading website on CO2 cooling and heating, which was followed by websites for hydrocarbons and ammonia (www.hydrocarbons21.com  and www.ammonia21.com), and accelerate24.news, a global news website on sustainable cooling and heating. In 2014 he launched Accelerate America magazine, which was followed by Accelerate Europe, Accelerate Japan, and Accelerate Australia & New Zealand. He also created a global network of ATMOsphere conferences on natural refrigerants.

Marc Chasserot, Group CEO

Marc is a specialist in natural refrigeration with 20 years of experience in the HVAC&R sector. He started as the marketing manager for the Norsk Hydro business unit, which specialized in CO2 transcritical refrigeration and heating; he worked closely with several Japanese manufacturers selling the innovative CO2 Ecocute heat pumps.

Michael Garry, Editor in Chief

Michael Garry is global editor of accelerate24.news, and has been editor of Accelerate America since its inception in 2014. He is a veteran business and environmental journalist who previously covered sustainability and retail technology for Supermarket News and Progressive Grocer, leading U.S. trade publications. A lifelong baseball fan, he is the author of Game of My Life: New York Mets (Skyhorse Publishing, 2015, 2018).


Accelerate24.news delivers a fortnightly newsletter, mobile-optimized for easy reading. The newsletter leverage shecco’s media network to reach an ever-increasing number of subscribers, including contractors, end users, manufacturers, sustainability experts and government officials. The newsletter provides a summary of key natural refrigerant news from around the world, as well as dedicated local content by region. Subscribe by clicking here.

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