The race lands on Ellesmere Island in Canada's High Arctic – and it is cold. Like, three-pairs-of-socks cold. The challenge: each racer has three hours to solve a glacier riddle and decide if it's fact or fiction. Get it wrong and you're going home.

Olivia's snowmobile breaks down in the middle of nowhere, Ryan somehow stumbles onto the right answer for the wrong reasons, and the clock is not waiting for anyone. With elimination on the line, Olivia has to figure out what's actually happening to the world's glaciers – and fast.

Featuring glacier science from Environment and Climate Change Canada!

If you're a kid who loves learning science and animal facts, you'll love Earth Rangers! Visit earthrangers.com to learn more!

This episode was made in partnership with Environment & Climate Change Canada.

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