martes, 4 de noviembre de 2014

Report: Ecosystems More Stressed Than Ever


WWF: Global Wildlife Populations Down by Half Since 1970


Wildlife Foundation: Tens of Thousands of Elephants Killed Every Year


Florida Ecosystems & their Endangered Animals: Wildlife Matters by Nature Wise


https://www.youtube.com/watch?v=lh9qdHpKUSQ

How does the climate system work?


What is an Ecosystem?


What Is An Ecosystem