A new investigation by Greenpeace International has found a wide range of hazardous substances in the effluent of communal wastewater treatment plants from two industrial zones in China, as well as in a nearby river after a pollution accident
I would use this is our unit because we are trying to teach the students the effects that human have on the Earth. Most (or all) of these animals populations are decreasing because of humans and the things that we are doing to the Earth. This visual is a great eye opener for the students.
We are responsible for our actions, and this river exemplifies what is the result of our actions. This is one of the reality which is hidden in the cost of business and which shouldn't be hidden but be recognized.