Greenhouse Gas: Carbon Dioxide Thuan, Marko
Greenhouse Gas: Carbon Dioxide Thuan, Marko. Carbon Dioxide (CO 2 ) Colorless odorless gas Ice Age (400 kyBCE) - 185 ppm Preindustrial (1700s) - 278.
Jan 18, 2018
Natural Variations of CO 2 Sinks Photosynthesis Ice The World’s Oceans Sources Combustion Volcanoes, Forest Fires Carbonate Rocks Increase of CO2 associated with seasonal cycles Positive feedback
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Greenhouse Gas: Carbon Dioxide
Thuan, Marko
Carbon Dioxide (CO2)Colorless & odorless gas
Ice Age (400 kyBCE) - 185 ppm
Preindustrial (1700s)- 278 ppm
Global average (June ‘11) - 391 ppm
Natural state of CO2?
Natural Variations of CO2
SinksPhotosynthesisIceThe World’s Oceans
SourcesCombustionVolcanoes, Forest FiresCarbonate Rocks
Increase of CO2 associated with seasonal cyclesPositive feedback
Anthropogenic Changes
Ice core sampling228 ppm to 391 ppm
Rapid climate changeOver short period
CO2 Levels expected to increase
Vostok Ice Core Data
391ppm (2011)
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