http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Last in the series of general biology lectures, this session explores global warming and ozone depletion, considering evidence of their existence and possible causes and effects. It explains albedo and emissivity, greenhouse gases and cooling effects, and the composition and importance of ozone. The program also addresses the Endangered Species Act and the global depletion of food, energy, and water resources.
Title from resource description page (viewed August 17, 2015).