You might be interested in the work of the artist Eva Hesse. She experimented with materials like latex and fiberglass to create sculptures that were almost organic, with skeletons and skin. These materials are decomposing quickly, and while I couldn't find a source for this online, I believe she was intentionally using industrial processes that led to more rapid chemical breakdown. So her creations are (not so) slowly dying, and some are already unable to be displayed publicly, only 60 years after they were made. Perhaps some are only still around because museum curators are "paying attention." But if they can't be put on display anyway, what's the point of the life-support? And is it against Hesse's artistic intentions?

See http://blog.sevenponds.com/soulful-expressions/falling-into-...