![60-Second Earth show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/802/small/60-second-earth.jpg)
Summary: The U.S. can no longer afford to ignore sewage as a source of drinking water, scientists argue. David Biello reports
Summary: The U.S. can no longer afford to ignore sewage as a source of drinking water, scientists argue. David Biello reports