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Volcanic Gases: Average Compositions and Minor or Trace Gases
Gas Compositions and Tectonic Setting
Gases: Man versus the Volcanoes
Volcanic Gases and the Origin of the Atmosphere
Global Impacts of Volcanic Eruptions
Some Important Eruptions
Deadly Gases
Dead Dinosaurs and Gas
Measuring Volcanic Gases
Quiz on Volcanic Gases
References on Volcanic Gases
Other Sources of Volcanic Gas Information

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Global Impacts of Volcanic Eruptions

Aerosols produced red sunsets and sunrises for astronauts aboard the Space Shuttle for up one year after the 1991 eruption of Mt. Pinatubo.

Global Volcanic Impacts

Climate: Cooling
El Nino
Volcanoes and Ozone