| http://www.w3.org/ns/prov#value | - Despite the fact that mankind's cumulative effects on CO2 concentrations in the atmosphere to date are not physically relatable to earlier periods, before there even was a mankind to speak of, the physical and historical evidence remains: (1) the concentration of CO2 is a miniscule part of the atmosphere is total composition (on the order of 390 parts in a million), and (2) there have occurred peri
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