Great Lakes and watersheds
Learn about how we protect the Great Lakes and watersheds to keep these vital waterways and ecosystems clean and healthy.
Learn how we're addressing threats to the waters and ecosystems of the Great Lakes-St. Lawrence River Basin to safeguard this vital resource and habitat.
Learn how we can conserve and manage our water resources by working together, and continue to protect fish, parks, beaches, coastal wetlands and water.
Read about the draft new collaborative agreement to address the most significant challenges facing the Great Lakes, such as pollution, climate change and protecting ecosystem health that continues to threaten these waterways.
Learn how we're reducing harmful and nuisance algal blooms in Lake Erie, a commitment under the Made-in-Ontario Environment Plan.
Learn about what Ontario is doing to protect Lake Simcoe and its watershed, and to address emerging challenges, including climate change and invasive species.
Learn about the Great Lakes Local Action Fund for projects to protect and restore coastal, shoreline and nearshore areas of the Great Lakes. Applications for the second round of funding are open until 2:00 p.m. March 11, 2022.
Why water levels in the Great Lakes change, why it matters and how they’re being managed.
Search this map and view Secchi depth and total phosphorus data from sampling sites that are part of the Lake Partner Program.
Learn how you can volunteer to track water quality through collecting samples from inland lakes.