Thanks Katrina. It looks good, but from the website, I can't exactly
tell how simple or complicated it is. What I mean by "simple" is
that it sticks to factors that can be reasonably correlated with each
other, such as the increase in atmospheric oxygen around the rise of
cyanobacteria, and,
Hi Wayne and others:
Part of the problem is that reconstructing trends in environmental
conditions (temperature, pH, O, etc.) are non-trivial and full of
complicated (and often cross-cancelling) interrelationships (i.e.,
pinning one unknown variable requires assumptions about the other
unknown
