A curious phenomenon springs up occasionally on New York's Finger Lakes: white foam, sometimes in miles-long swathes, almost as if a massive washing machine emptied out into the water.

Every time it rains, there is a white foam forming at the base of the tall big white oak and pine trees on our property… and it disappears when the rain stops. What is that?

Natural foam forms when decomposing aquatic plants release oils into the water, causing a change in the physical characteristics of the water that allows for the formation of bubbles, which ...

Foam laden with PFAS forms at Van Etten Lake. The foam forms because PFAS are surfactants, which are chemicals designed to be "sticky" to help with cleaning (like dish soap or shampoo).

With more people enjoying the outdoors heading into the summer months, the Michigan Department of Health and Human Services advised against coming in contact with foam on lakes, rivers, and ...