Made of hard plastics they'll last nearly forever in the environment like this.
Last week I started a huge zero trash project in one of my communities and yesterday morning I spent interviewing all of the convenience store owners about how many plastic bags they give away. In the afternoon I calculated how much money they are losing by giving them away for free, bagging one thing in a giant bag and double bagging everything. Imagine an entire community in a developing country using cloth bags to get their groceries...I have fantasies about my work :)