The Exact Timing of Near-Term Human Extinction Is Academic

30 05 2014

Collapse of Industrial Civilization

This post is in response to Systemic Disorder commenter Palloy who thinks that peak oil will save mankind and that global warming “will not be as bad as +1.5°C.” I want to answer the question of what degree of warming we are already committed to if industrial civilization were to disappear off the face of the Earth right now.

Palloy is overlooking the part that aerosols from industrial activity play in temporarily cooling the planet. James Hansen called this the Faustian Bargain:

…Human activity modifies the impact of the greenhouse effect by the release of airborne particulate pollutants known as aerosols. These include black-carbon soot, organic carbon, sulphates, nitrates, as well as dust from smoke, manufacturing, wind storms, and other sources. Aerosols have a net cooling effect because they reduce the amount of sunlight that reaches the ground and they increase cloud cover. This is popularly known as “global dimming”…

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