Snowmaking is commonly used in the world. Artificial snowmaking for Beijing 2022 has little impact on local water supply and ecology thanks to China's world-leading water-conserving equipment.
Is Artificial Snow Bad For The Environment? - Conserve Energy Future
The Problem with Fake Snow - Powder
The Details of Artificial Snow: Is It the Future of Skiing
All about Artificial Snow - Uncommon Path – An REI Co-op Publication
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Why Artificial Snow Can't Be a Long-term Solution - Utopia
How Beijing Created Snow for the Winter Olympics - The New York Times
Snowmaking - Wikipedia
Let it snow: The science and future of snowmaking at Utah's ski