Juan Antonio Samaranch Jr., chairman of the IOC Coordination Commission for Beijing 2022, told a digital press conference on Nov 9 he was happy and proud to see that Beijing has dedicated enormous attention to sustainability, delivering the promise of holding a carbon neutral Games.

"Many Olympic and Paralympic venues are powered by renewable energies, like solar or wind. It's very innovative on low carbon emission. The CO2 refrigeration systems will be used in most of the ice venues," he said.

"China also keeps the promise of getting 300 million people involved in winter sports. We are convinced that the Beijing Winter Olympics will inspire thousands of children and young students to embrace winter sports across the world," he noted.