Öko-Recherche - Analyses of material flows of chemicals in the environment, including chemicals damaging the ozone layer. [Site in English and German. Flags are language selectors.] The Ozone Hole Tour - An overview of the ozone layer and the development of the ozone hole over the Antarctic hosted by the Centre of Atmospheric Science, University of Cambridge. Ozone Layer - Information from Wikipedia on this layer in the lower portion of the stratosphere, from approximately 10 km to 50 km above Earth's surface, which contains a relatively high proportion of ozone. The European Ozone Research Coordinating Unit (EORCU) - Co-ordinating unit of stratospheric ozone research in Europe. NSF Polar UV Monitoring Network - Monitors UV radiation at six sites in Antarctica, Argentina, California, and Alaska. SAGE III Ozone Loss and Validation Experiment (SOLVE) - a measurement campaign sponsored by NASA's Ames Research Center designed to examine the processes controlling ozone levels at mid- to high latitudes. Worrest, Robert C. - About the Director of the US Global Change Research Information Office (GCRIO) and Associate Director for CIESIN Washington Operations, and his publications on the effects of stratospheric ozone depletion on the biosphere. Ozone UK, Europe and Global. - Ozone TOVS TOMS and GOME data. Unique NW Euro Maps and graphics. Calculated global and UK averages using GRIB data. Links to Ozone, Weather and Climate. EFCTC : Fluorocarbons (HCFC, HFC, PFC) and Sulphur hexafluoride (SF6) - Presents information about fluorocarbons (HCFC, HFC, PFC) and sulphur hexafluoride (SF6), including applications, physical and chemical properties, environmental impact and regulatory aspects. Climate Prediction Center's Stratosphere Home Page - NOAA organization's UV Index forecasts and maps of stratospheric ozone depletion, daily hemispheric ozone, and stratospheric temperature time series. Stratospheric Ozone Monitoring and Research in NOAA - Provides a comprehensive technical primer on the ozone layer and its depletion, as well as access to real-time and historical monitoring data, descriptions of instruments used to detect ozone, and related information and links. Stratospheric Ozone - This Environment Canada site deals with issues, programs and other aspects having to do with stratospheric ozone. UNEP OzonAction Programme - A global clearinghouse service and Regional Networks of NOUs that promote the exchange of information, experience and know-how required to meet commitments under the Montreal Protocol. Stratospheric Ozone Depletion - NASA resource file for students and teachers The Science of Stratospheric Ozone Depletion - Union of Concerned Scientists primer on the ozone layer, its importance, the effects of human-produced chemicals, and prospects for the future. CIESIN Thematic Guide on Ozone Depletion - Overview of key concepts related to stratospheric ozone depletion, including the role of chlorofluorocarbons, health effects from increased exposure to UV-B radiation, environmental effects, and policies and responses. CFCs (Chlorofluorocarbons) and Ozone Depletion - CIESIN thematic guide. Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer - Seventh edition (2006) which provides the details of this protocol. Includes FAQs. USDA UV-B Monitoring and Research Program - Collects information on geographical distribution and trends of UVB radiation in the US, in order to assess potential impacts of increasing ultraviolet radiation levels on agricultural crops and forests. International Ozone Services Inc. - Offers worldwide ozone and UV calibration services to customers with Brewer Ozone Spectrophotometer instruments. The Origin of the Ozone Hole: Natural or Anthropological - Article by James A. Marusek discussing the two theories that explain ozone depletion. One theory postulates that the cause is man made, and the other, that the cause is a weakening of the Earth’s magnetic field.