Crews are again draining the Lincoln Memorial Reflecting Pool as President Donald Trump's problem-plagued efforts to revamp ...

Karenia cristata, a rare type of microscopic algae that produces toxins that harm nerve cells, can be lethal at very low ...

Maricopa County allowed Revel Surf to operate with lower chlorine levels than typically required because of the technology.

The Idaho Conservation League’s inaugural State of the Snake document outlines three big problems and provides some ...

After signing a bill banning use of minimally cleaned sewage sludge on farmland, Gov. Ron DeSantis vetoed a measure curbing ...

Turbidity refers to the cloudiness or murkiness of water caused by suspended particles such as silt, clay, algae, organic ...

Trying to kill algae with chemicals is a common response when community ponds or other water features go green, but a ...

This summer's harmful algal bloom looking similar to moderate ones in recent years past. Does that mean progress is being ...

The Lincoln Memorial Reflecting Pool has predictably turned green again. No matter who is in office, no matter how much hydrogen peroxide is added, the shallow, sunbaked, nutrient-rich pool will ...

JEFFERSON COUNTY, Ore. (KTVZ) — Jefferson County leaders and tourism advocates are calling on the Oregon Health Authority to provide clearer communication and greater transparency regarding ...

Harmful algal blooms — out-of-control colonies of microscopic algae — are a "growing problem" in every "US coastal and Great Lakes state," says NOAA. They affect the "health of people and marine ...