Documents Published by AAAS A. D. Anbar et al., Science 297, 1137 -1142 (2002) Fig. 1. During the Archean,...

Slide 1 Slide 2 Published by AAAS A. D. Anbar et al., Science 297, 1137 -1142 (2002) Fig. 1. During the Archean, oceans Slide 3 Basic Premises/Hypothesis 1. In the first…