![](https://image.tmdb.org/t/p/w342/6PszgaH7rYC9TaBypZTMw2J603N.jpg)
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Derek Muller discovers why Mexico City is sinking, Nazeem Hussain tests his desert survival skills, and Bill has a drink with a "water sommelier".
First Air Date : Apr 21, 2017
Last Air date : May 11, 2018
Episode : 25 Episode
Season : 3 Season
Runtime: 30 minutes
Studio: Netflix
Country: United States of America
Cast: Bill Nye
Crew: Mike Drucker (Writer)