These popsicles are made from polluted water
http://edition.cnn.com/2017/07/31/design/sewage-popsicles-taiwan/index.html
We tend to think water pollution is far from our lives. So, it is difficult to encourage people to keep river clean.
But, if what we eat is replaced with polluted water, it's a big issue, and would give us strong impression.
Considering that, popsicles made of polluted water can enhance environmental mind of us.
