"As the first study that looks at water supply, demand and quality across the lower 48 ... supply and demand—across the contiguous United States. A map shows the severity of water limitation ...

The quality of the air we breathe and the water we drink are critical aspects of leading a healthy, productive life. The air and water quality subcategory informs the best states for natural ...

The Minnesota Department of Natural Resources has completed a 10-year effort to provide much more accurate maps of Minnesota’s wetlands. The update of the state’s National Wetlands ...

The Los Angeles Department of Water and Power released an interactive map to help residents determine if Do Not Drink notices affect them.