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Clash of Ideas, Episode 3

This episode, filmed in the spectacular Swiss Alps of canton Glarus, presents an account of the development of ideas on the origin of mountains. It is both humbling and exciting to realize how much geological understanding changes with time. If you are a teacher, a lesson plan to go with this short video can be found here: https://www.grisda.org/clash-of-ideas-supplementary-material-for-teachers