Earth's early atmosphere had no reducing gases (Talk.Origins)

Claim CB035.2:

Reducing gases likely were not present in the early, prebiotic earth's atmosphere.

Source:
 * Discovery Institute. 2003.A preliminary analysis of the treatment of evolution in biology textbooks currently being considered for adoption by the Texas State Board of Education.
 * Wells, Jonathan. 2000. Icons of Evolution. Washington DC: Regnery.

CreationWiki response:

This is a straw man argument, since this is not what the cited sources say. They say that the simulated atmosphere of Miller’s experiment, "was probably more strongly reducing than the actual atmosphere of the early Earth."

La atmósfera primitiva de la Tierra no tenía gases reductores (Talk.Origins) A atmosfera primitiva da Terra não tinha gases reduzidos (Talk.Origins)