What Makes Glacier Ice Blue?

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Inside of that glacier are a bunch of water molecules, thousands at least, and they're in there. And even though it's a solid mass, they're vibrating. Molecules just vibrate. They do. You can only see this when you're deep inside of a glacier as the light is passed through several meters of all these vibrating water molecules. This is the same reason that the ocean is blue. So thanks to human activities from climate change, environmental pollution to habit at loss, more of the natural world, living and non living alike, is under threat today than ever before.

Have you ever wondered why there are seven days in a week? Or, why glaciers are blue—or what color even is? Today’s guest, YouTube creator Joe Hanson, makes a living by asking—and trying to answer—these kinds of questions. A biologist turned video producer and educator, Joe spends his days thinking about how telling stories and encouraging curiosity can help people think more deeply about the universe they live in, and engage with science in more meaningful ways. In this episode, he gives tips on how to unleash our innate desire to know things, explains what makes good science, and shares how cool facts can help you save the planet— and win big at trivia night. Joe was a part of Countdown, TED’s climate conference, which you can learn more about at countdown.ted.com. You can check out “It’s Okay To Be Smart”, Joe’s award-winning science education show from PBS Digital Studios, on YouTube. We want to know what you think about the podcast! Let us know your thoughts by visiting this link https://survey.prx.org/BetterHuman—and get a chance to be featured in a future episode To learn more about "How to Be a Better Human," host Chris Duffy, or find footnotes and additional resources, please visit: go.ted.com/betterhuman