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Argument: Argument thesis  Global Warming is of human origin
Node type: Node supports parent assertion  This node supports its parent
Parent node: The thesis is the parent  The thesis is the parent
Node Text: Combustion of fossil fuels is the biggest cause of the increase of atmoshperic CO2.

Atmospheric CO2 has increased in concentration from 280 to 385 parts per million (ppm) over the last 200 years. This increase is caused by humans burning fossil fuels such as coal, petroleum, and natural gas.
Node Created: geniusiknowit — 2008-08-17 12:25:47

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