This radio broadcast outlines the recent upsurge in gold mining, particularly small-scale operations, and the resulting problem of mercury pollution. A brief introduction to the use of mercury to separate gold is...

The transport and transformation of substances in the environment are known collectively as biogeochemical cycles. These global cycles involve the circulation of elements and nutrients that sustain both the biological...

A beautiful and dramatic website, Waterlife, addresses the dire state of the Great Lakes. Created by the National Film Board of Canada the site has high quality images, a rousing soundtrack, and different narrators....

This is a student activity regarding phytoplankton blooms and their effects on the ecosystem. Students will obtain and analyze data on the variables that influence the spring phytoplankton bloom from buoy monitoring...