When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication ...

Staffing at NOAA's Great Lakes Environmental Research Laboratory was already reduced by more than one-third in 2025.

The longstanding relationship between the United States and Canada plays a critical role in the stewardship of the Great ...

Take an underwater journey as researchers deploy sonar technology to map the lakebed to document organisms that call it home.

Great Lakes steelhead are adfluvial fish, meaning they migrate from big lakes into rivers to spawn. This annual migration starts in the fall and ends in the spring when they return to the lakes to ...