On Mon, 13 Mar 2017 19:06:23 -0400, Meanie wrote:

https://www.reddit.com/r/askscience/...me_brittle_is/


Same as with Oren's response. It can't be just ozone or the entire
bands would have had the problem. Somehow, cool & damp sped up the
process. Could mold or mildew be part of it?