less-toxic leather tanning

Here's a link to an article from Treehugger on a less-toxic leather tanning meathod:

excerpt:
"Raghava Rao and a group of researchers at the Central Leather Research Institute (CLRI) in Adyar have found a simple way to reduce the amount of chemical pollutants involved in tanning by merely reversing the order of tanning and post-tanning steps. By doing so, they were able to cut the amount of chemicals released by 82% and increased energy efficiency by 40%, without observable reduction in quality."

http://www.treehugger.com/files/2008/01/eco-friendly_leather.php