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Category: Education

Hank gives the run down on the top five ways humans are negatively impacting the environment and having detrimental effects on the valuable ecosystem services which a healthy biosphere provides. Like Crash Course? Follow Crash Course! T*mbl Crash Course: Table of Contents Ecosystem Services 00:51 The Importance of Biodiversity 04:07 Deforestation 06:42 Desertification 06:49 Global Warming 07:59 Invasive Species 08:51 Overharvesting 09:20 Crash Course/SciShow videos referenced in this episode: Hydrologic and Carbon Cycles: Nitrogen and Phosphorus Cycles: Ecological Succession: Climate Change: Invasive Species: Food Shortage: References and image licenses for this episode can be found in the Google document here: Crash Course is on Patreon! You can support us directly by signing up at