- The Chicago Astronomer -
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Environmentalism seems to be the fad of the moment; every day you hear or read about how human activity has changed Earth's environment: carbon emissions, global warming, etc. etc.
That got me thinking: Perhaps one day Earth will be so industrialized, and skyscrapers will become so prevalent (with their accompanying lightning rods), that a potential difference no longer exists in Earth's atmosphere. Would its absence adversely affect life on Earth? Have any studies been conducted on this subject?
Does life on Earth require a potential difference in the atmosphere?