Oil refineries release billions of pounds of pollution into waterways each year, according to regulatory data. NPR found that pollution is concentrated near places where people of color live.

For many people, the 1969 fire on Cleveland’s Cuyahoga River is the symbol of the pre-Clean Water Act era. More than a dozen fires had erupted on that one river. Many more rivers in cities from ...

Water pollution is a rising global crisis. Here’s what you need to know. The world's freshwater sources receive contaminants from a wide range of sectors, threatening human and wildlife health.