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.

2021 Annual Climate Trends and Impacts Summary for the Great Lakes Basin

The 2021 Annual Climate Trends and Impacts Summary for the Great Lakes Basin, led by Environment and Climate Change Canada and the U.S. National Oceanic and Atmospheric Administration and a partnership of climate services organizations in the U.S. and Canada, provides an overview of the climate trends and impacts in the basin for the year, […]

Posted: July 21, 2022

Quarterly Climate Impacts and Outlook: Great Lakes Region – March 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: May 9, 2022

Development of the 2023-2027 Lake Ontario Lakewide Action and Management Plan

The Great Lakes Water Quality Agreement commits Canada and the United States to prepare and issue Lakewide Action and Management Plans (LAMPs) for each of the five Great Lakes every five years on a rotational basis. We are pleased to advise you that the Lake Ontario Partnership has begun to develop the next Lake Ontario […]

Posted: May 3, 2022

Canada’s Great Lakes Strategy for PFOS, PFOA, and LC-PFCAs Risk Management

The Great Lakes Water Quality Agreement (GLWQA) commits Canada and the United States to prepare and issue binational strategies for Chemicals of Mutual Concern (CMCs), which may include research, monitoring, surveillance, and pollution prevention and control provisions. Canada’s Great Lakes Strategy for Perfluorooctane Sulfonate (PFOS), Perfluorooctanoic Acid (PFOA), and Long-Chain Perfluorocarboxylic Acids (LC-PFCAs) Risk Management […]

Posted: March 24, 2022

2020 Annual Climate Trends and Impacts Summary for the Great Lakes Basin

a partnership of climate services organizations in the U.S. and Canada, provides an overview of the climate trends and impacts in the basin for the year, including: Information on the past year’s climate trends in the Great Lakes Basin – how ‘normal’ the climate and lake levels were; A summary of some of the major […]

Posted: November 8, 2021

Canada and United States Finalize Documents to Support the Annex 3 Chemical Nomination Process

The Great Lakes Water Quality Agreement (GLWQA) commits Canada and the United States to prepare and issue Binational Strategies to reduce the release and impact of Chemicals of Mutual Concern (CMCs). The Binational Screening Criteria for nominated CMCs are now available. These screening criteria were developed to provide a consistent framework for reviewing nominated CMCs […]

Posted: June 28, 2021

Traditional Ecological Knowledge Speaker Series

From May 26 – June 30, 2021, the Science Annex Traditional Ecological Knowledge (TEK) Task Team of the Great Lakes Water Quality Agreement is co-hosting a weekly Great Lakes TEK speaker series with the University of Minnesota – Twin Cities Department of American Indian Studies. Register for the series (Zoom). This series brings together Tribal, […]

Posted: June 28, 2021

2019 Annual Climate Trends and Impacts Summary for the Great Lakes Basin

The 2019 Annual Climate Trends and Impacts Summary for the Great Lakes Basin, led by Environment and Climate Change Canada and the U.S. National Oceanic and Atmospheric Administration and a partnership of climate services organizations in the U.S. and Canada, provides an overview of the climate trends and impacts in the basin for the year, […]

Posted: August 6, 2020