Hi all! I live in an RV and can tell you that the TP for my balck water tank will degrade over time, but not in a few days. It's paper based after all. If you want to ensure it degrades after burial, you'd need to take a small bottle of enzymic treatment chemicals. These are generally "green" and will degrade quickly in soil without contaminating it. It'll break the paper down as well. Just squirt a bit in the hole (or on the err..umm.."pile") when you're done and it'll break down not only the paper, but the waste as well. I take both.