One of the greatest puzzles is the mass abandonment of civilised areas, temples, buildings, land by peoples in the past. Societies who had built up complex habitations suddenly left them. This occured around the world, from South America to Europe. It has happened a few times.
Was it due to sea levels rising/falling or changes in the worlds environment. What could cause see levels to keep rising and falling and the weather to change so much in an area? If the weather is a global electrical circuit then any changes in the power or current may be able to change the conditions. If water is created or produced in an Electrical Universe then this may help explain it.
Layers of charcoal are found around the world. Could this have been caused by a Plasma Discharge Event affecting the earth or could it be produced naturally?
One thing to note is that the areas seemed to change ecology overnight. Wet places becoming very very dry. For example Egypt and the Argaric peoples area in Spain.
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Dark Earth - Burnt Mounds and "Middens" found around the world - further forum posts
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Dark Earth, Terra preta and the Terramare culture (Black Earth / Chernozem) - further forum posts