There will be a planned outage of this website beginning 8:00 am CST on Monday, March 3 and lasting through Wednesday, March 5 as we migrate our network to EPA’s National Computer Center. During the move, this website will be unavailable. Please check the site on Thursday March 6, 2025 after 8 am CST as we hope to have all services restored by then. Il y aura une interruption programmée de ce site web à partir de 8h00 CST le lundi 3 mars et jusqu'au mercredi 5 mars, car nous transférons notre réseau vers le Centre National de l'Informatique de l'EPA. Pendant cette période, le site web sera indisponible. Veuillez vérifier le site le jeudi 6 mars 2025 après 8h00 CST, car nous espérons avoir rétabli tous les services d'ici là.

Nutrients Annex Subcommittee Recommends Retaining Lake Ontario Phosphorus Targets

To help manage nutrient loads and mitigate the impacts of harmful and nuisance algae in Lake Ontario, the United States and Canada committed, through the 2012 Great Lakes Water Quality Agreement (GLWQA), to review (and revise if appropriate) the binational phosphorus targets for Lake Ontario. Based on the findings of a recent assessment, the GLWQA […]

Posted: July 11, 2023

Quarterly Climate Impacts and Outlook: Great Lakes Region – March 2023

The “Quarterly Climate Impacts and Outlook: Great Lakes Region” is a brief bulletin published jointly by the National Oceanic and Atmospheric Administration and Environment and Climate Change Canada, summarizing the latest season’s weather and water level conditions and weather and water level-related impacts over the Great Lakes and provides an outlook for the upcoming quarter. […]

Posted: June 13, 2023

Quarterly Climate Impacts and Outlook: Great Lakes Region – December 2022

The “Quarterly Climate Impacts and Outlook: Great Lakes Region” is a brief bulletin published jointly by the National Oceanic and Atmospheric Administration and Environment and Climate Change Canada, summarizing the latest season’s weather and water level conditions and weather and water level-related impacts over the Great Lakes and provides an outlook for the upcoming quarter. […]

Posted: June 13, 2023

Quarterly Climate Impacts and Outlook: Great Lakes Region – September 2022

The “Quarterly Climate Impacts and Outlook: Great Lakes Region” is a brief bulletin published jointly by the National Oceanic and Atmospheric Administration and Environment and Climate Change Canada, summarizing the latest season’s weather and water level conditions and weather and water level-related impacts over the Great Lakes and provides an outlook for the upcoming quarter. […]

Posted: June 13, 2023

(Webinar) Nutrients and Algal Blooms in Lake Erie

Are you interested in the impact of algal blooms and nutrient pollution on the health of Lake Erie? If so, mark your calendars for Tuesday, June 20, 2023, at 10 a.m. CT (11 a.m. ET) for a one-hour public webinar, Nutrients and Algal Blooms in Lake Erie as part of our Let’s Talk Lake Erie […]

Posted: May 23, 2023

Lake Huron Lakewide Action and Management Plan Annual Report 2022

The Lake Huron Lakewide Action and Management Plan (LAMP) is a binational ecosystem-based strategy for protecting and restoring the water quality of Lake Huron, including the St. Marys River. This 2022 Annual Report highlights accomplishments and progress during the past year including outreach, monitoring, and protection and restoration actions. The LAMP is developed and implemented […]

Posted: May 15, 2023

Lake Ontario Lakewide Action and Management Plan Annual Report 2022

The Lake Ontario Lakewide Action and Management Plan (LAMP) is a binational ecosystem-based strategy for protecting and restoring the water quality of Lake Ontario, including the Niagara River and St. Lawrence River to the international boundary. This 2022 Annual Report highlights accomplishments and progress during the past year including outreach, monitoring, and protection and restoration […]

Posted: May 15, 2023

Lake Superior Lakewide Action and Management Plan Annual Report 2022

The Lake Superior Lakewide Action and Management Plan (LAMP) is a binational ecosystem- based strategy for protecting and restoring the water quality of Lake Superior. This 2022 Annual Report highlights accomplishments and progress during the past year including outreach, monitoring, and protection and restoration actions. The LAMP is developed and implemented by the Lake Superior […]

Posted: May 15, 2023