Janice Kai Chen

As we are seeing the climate warm, the number of possible host locations that can host the Winter Olympics decreases.

By the middle of the century, there could be fewer than 20 countries with the right conditions to host the Games.

The study defines climate reliability based on two parameters, and that is the probability that the location will be cold enough.

And the second parameter is the probability of adequate snow depth.

We actually found during a reporting that they're going to use up to 100 percent artificial snow in certain areas.

And the only place that they're going to use less snow is, I believe, in the Cortina area where they're going to be using as low as 85 percent.