Big Question: What is Nature Worth? Institute on the Environment, University of Minnesota [3:15] 2010 Description: Plants, animals, even entire ecosystems are disappearing from the Earth. So what? In "What Is Nature Worth?", the University of Minnesota's Institute on the Environment offers a three-minute look at what biodiversity loss is really costing us -- and what we can do about it.
Why is Biodiversity So Important? By Kim Preshoff and TED-Ed [4:18] 2015 Description: Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can become lifeless rocks. What makes one ecosystem strong and another weak in the face of change? Kim Preshoff details why the answer, to a large extent, is biodiversity.