Fossil Fuels Environmental Implications. Fossil Fuels and the Environment  Environmental Consequences of  Extraction: drilling, mining  Transportation:

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Presentation transcript:

Fossil Fuels Environmental Implications

Fossil Fuels and the Environment  Environmental Consequences of  Extraction: drilling, mining  Transportation: pipelines, rail

Fossil Fuels and the Environment  Environmental Consequences of Use:  Atmospheric Effects: –Particulate Matter –Global Warming - CO 2 –Acid Precipitation - SO X

Fossil Fuels and the Environment  Environmental Consequences of Use:  Hydrologic Effects –Sediment Loading – Coal spoil –Acid Precipitation - SO X –Acid Mine Drainage (AMD) - SO X

Fossil Fuels and the Environment  Environmental Consequences of Use:  Land Effects: –Abandoned strip and subsurface mines –Coal Spoil –Coal Ash –Soil Acidification

Fossil Fuels and Acidity

Acidity  Fossil fuels form under reducing conditions  Conditions also enable formation of pyrite (fool’s gold)

Acidity  Reducing conditions enable formation of pyrite (FeS 2 )  On combustion, pyrite is converted to iron oxide and sulfur oxides (SO x )  SO x + water forms Sulfuric Acid

Acid Precipitation  Kills trees  Kills freshwater aquatic life  Increases deterioration of stone and metal structures (buildings, bridges)  Damages crops

Coal-generated Electricity

Fossil Fuels and the Environment  Environmental Consequences of Use:  Land Effects: –Abandoned strip and subsurface mines –Coal Spoil –Coal Ash –Soil Acidification

Active Strip Mine

Abandoned Strip Mines

Coal Breaker

Mine Spoil

Sediment Loading and AMD

AMD: acid mine drainage

AMD and ‘Red Boy’

AMD from the Subsurface