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Replacing fossil fuel with hydrogen seems like an ideal solution to make transportation environmentally friendly and to provide a backup for intermittent energy sources like solar and wind. But how environmentally friendly is hydrogen really? And how sustainable is it, given that hydrogen fuel cells rely on supply of rare metals like platinum and iridium? In this video, we have collected all the relevant numbers for you.

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00:00 Intro
00:49 Hydrogen Basics
03:39 The Hydrogen Market
06:04 The Colours Of Hydrogen
12:11 Water Supply
13:34 The Cold Start Problem
14:05 Rare Metal Shortages
15:55 Hydrogen Embrittlement
16:45 Summary
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