News

Salt marshes, critical buffers against coastal erosion, rely on a net gain of sediment to maintain their elevation and resilience as sea levels rise...

In summer 2025, a research team led by the USGS worked with the NOAA ship Rainier to map a large swath of seafloor offshore of Kodiak Island, Alaska...

New USGS-led research finds that submarine groundwater discharge (SGD)—the unseen flow of freshwater and nutrients from land to sea—is a key driver of...

How well can we predict the future of changing shorelines? That question was put to the test in ShoreShop2.0, a recently published collaborative...

A selection of coastal and ocean videos and photographs from across the USGS.

News Briefs - featuring coastal and ocean science from across the USGS.

New research led by USGS finds that along California’s rugged coastline, some of the state’s most scenic “pocket beaches”—short stretches of sand...

Hawai‘i’s iconic beaches—essential to the state’s identity, economy, and ecosystems—are disappearing faster than previously predicted. New projections...

A USGS-led expedition in the Aleutian Arc off Alaska will provide critical information on energy resources, underwater earthquakes and other hazards...