
Rafts of duckweed – a sign of fall
September 15, 2015


Related campaigns

Water quality monitoring
Riverkeeper is the go-to source for information about the quality of the water along the Hudson River and its tributaries

Invasive species
Protecting the Hudson includes defending it against outside threats

Remediating and preventing contamination
Cleaning up decades of pollution and preventing more requires scientific understanding, targeted legal action, and sustained advocacy