Pick your favorite large and highly polluted river. You can start with:

http://science.sciencemag.org/content/362/6414/503?utm_campaign=toc_sci-

mag_2018-11-01&et_rid=40166412&et_cid=2463234

OR

https://www.newyorker.com/magazine/2016/07/25/what-it-takes-to-clean-the-

ganges

Or choose from this list:

https://www.conserve-energy-future.com/most-polluted-

rivers-world.php

And you can choose the Mississippi, or go international!

Then find 3+ sources that talk about the problem, and solutions, and summarize what you learned. USE YOUR OWN WORDS (TurnIt is used) – be sure to summarize, and not plagiarize, text from these reports! Include the citations.