ammonium phosphates

An aerial fire retardant is widely used in Northern California. Is it harming the environment?

Photo: Russian Riverkeeper’s Birkin Newell surveys Mill Creek and the now regrowing redwoods, Tuesday, April 4, 2023 that dot the…

1 year ago

Nitrates Before and After: This is what happened

Many people are curious about Iowa stream nitrate before modern agriculture became established across the landscape. They want to know…

4 years ago