Continuing with some thoughts on the earth’s atmosphere from my previous post on the subject, “The Thin Blue Line (1)”: Our atmosphere as it exists today probably derives (as our oceans also do) from the “degassing” of the primitive semi-molten earth, supplemented by later additions belched up from volcanoes and emitted by hot springs. The atmosphere of early geologic times was made up of such gases as hydrogen, nitrogen, carbon monoxide, carbon dioxide, water vapor, and various... Read more