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- A Hole in the Ozone- Acid Rain- Aerosols- Climate Variability- Extreme Weather- Signs of Warming- The Greenhouse Effect- Carbon Sequestration- Ice Ages- Island Earth- Landslides- Tales Told By Trees- Amphibian Alarm- Biodiversity- Coral Reefs- Ecosystem Services- Fire Dependent Ecosystems- Global Change in Mountain Ecosystems- Mass Extinctions- North America's Thawing Cap- Phytoplankton- A Changing World- Changes in the Chesapeake Bay- City Lights- Future Energy Supplies- Material World- The Human Footprint- The Return of the Wolf- World Population- Future Forest Fires- Mortenson Ranch- Native Ecology- Prairie Potholes- Precision Agriculture- Fresh Water- Greenland's Thinning Ice- Melting at Glacier National Park- On Thin Ice- Paradise Lost- Water, Water Everywhere?

Subscribe to RSS feed. Subscribe to iTunes podcast. A Hole in the Ozone Satellite images document the growth of the ozone hole over Antarctica in the 1980's. What caused the hole to allow deadly UV solar radiation to reach Earth's surface? Is the ozone hole still a problem? Learn More... What is Ozone and Where is the Ozone Layer? Why is the Ozone Layer so Important? What are Chlorofluorocarbons (CFCs)? Is the Ozone Layer Diminishing? Reason for Hope External Links The Ozone Hole Tour Total Ozone Mapping Spectrometer (TOMS)

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