1. Alabama

Adam Yamaguchi reports on parts of the country where a basic sanitation infrastructure is out of reach for tens of thousands of residents forcing them to live near raw sewage.

3. Florida

Adam Yamaguchi reports from the Florida coasts, where breakneck development, climate change and too much waste are creating a perfect environmental storm.

4. Iowa

Adam Yamaguchi explores how big farmers in Iowa produce far more pig waste than the environment can handle. As a result, the waste is getting into the waterways and may be impacting residents' health.