Fake Snow: Help Or Hindrance?

Beijing has made history this year as the first host of the Winter Olympics to rely almost entirely on artificial snow - a development that could become the norm as the planet warms. It is estimated that 49 million gallons of water have been used to make the artificial snow for the 2022 Games, despite the capital of China being one of the most water-scarce cities in the world. How it is made, what is its impact on the environment and at what risk it to athletes?

Source: National World