Conservation International's Biodiversity Hotspots page is worth a visit. It offers a good overview of why certain places are biologically richer than others, and why protecting those places is an important part of any plan to retain as much of the richness of life as possible.

This collection is a part of Resources from the Worldchanging Library. Throughout this series, we will present the best resources from our archives. To view the complete list, please click here.

CCphoto credit