I am bemused by a current APUG discussion about a 100% natural camera. This being said, I think it best to re-use the current over supply of high and low end film equipment. There is more expired film out there than we might imagine also. The "damage" to the planet in the manufacture of these goods has already been done. Additionally DO NOT OVER WASH your prints and negatives. If becomes something of great importance in 100 years a conservator will re-fix, wash, or re-print as needed. Nothing worse than archival preserved negative and prints in the landfill 2-weeks after your inevitable dirt nap. I came upon this philosophy after photographing for a newspaper, the negatives in the archive were under-fixed, and under-washed yet still perfectly fine after 50 years. I find most people are self important archival paranoids in the beginning of their pursuit and realize that only the best final prints need that archival touch.