The discussion revolves around the strength of the Earth's electric field, specifically its measurement and implications at the Earth's surface. The original poster seeks to understand the relationship between electric field strength and surface area, questioning how to express the electric field in terms of charge density.
Some participants have provided clarifications regarding the units of electric field and suggested relevant concepts like Gauss's theorem. The conversation is ongoing, with multiple interpretations of the original question being explored.
The original poster's question includes assumptions about the Earth's electric charge and its interaction with atmospheric conditions, which may not be fully defined or agreed upon in the discussion.