 Jean-Pierre, who has commented extensively on the green diaper issue, put me on to the website of Richer Consulting Services, a source for information about the disposable diaper industry.
It is quite an extensive website, where you can find information about the history, economy, manufacturing process, and ingredients of disposable diapers.
I plan at some point to have a closer look there and will report back on it, along with an update about several unanswered questions about Green Diapers in particular.
Thanks Jean-Pierre!