Search results

Refine by year level

Refine by topic

Main topic Specific topic Related topic
Listed under:  Science  >  Environmental management  >  Environmental impact  >  Environmental degradation  >  Desertification
Video

Beyond the Aral Sea's shrinking shore

The Aral Sea was once the fourth-largest lake in the world. However, since the 1960s it has been shrinking due to environmental changes caused by humans. In this clip you will discover that the scale of the environmental impact in this region extends well beyond the retreating shoreline.

Online

The power of food

This is a compilation of three teaching sequences about food security. It includes sections on countries and their levels of food security and insecurity, hunger worldwide, programs working to improve food security, and approaches to food security. It introduces this important global issue and provides source material, ...