Nutrients (Annex 4)

Please join us on Thursday, June 18th from 12:00 p.m. -1:00 p.m. eastern / 11:00 a.m. -12:00 p.m. central for a webinar that will provide updates on the latest Lake Erie conditions, including phosphorus loading, severity of algal blooms, extent of hypoxia, and highlights of actions being taken in Canada and the United States to […]

Please join us on Thursday, January 23 from 10:30 a.m. -12:00 p.m. eastern / 9:30 a.m. -11:00 a.m. central for a webinar that will provide updates on work under the Nutrients Annex of the Great Lakes Water Quality Agreement. During this webinar we will summarize current conditions in Lake Erie, and you will hear about […]

Under the 2012 Great Lakes Water Quality Agreement, Canada and the United States use an Adaptive Management approach for addressing eutrophication issues in Lake Erie. The Annex 4 (Nutrients) Subcommittee’s Adaptive Management Task Team conducted an evaluation to assess changes in phosphorus loads and progress towards achieving the related Lake Ecosystem Objectives outlined under Annex […]

Through the Great Lakes Water Quality Agreement (Agreement), Annex 4 (Nutrients), Canada and the United States (the Parties) have committed to coordinate binational actions to manage phosphorus loadings to the Great Lakes to combat harmful and nuisance algal blooms and hypoxia. The Parties adopted phosphorus load reduction targets in 2016 to reduce inputs to the […]

To help manage nutrient loads and mitigate the impacts of harmful and nuisance algae in the Great Lakes, 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 each of the Great Lakes. The United States and Canada have […]

Please join us on Wednesday, December 13th from 10:30-12:00 pm eastern / 9:30-11:00 pm central for a webinar that will provide updates on work under the Nutrients Annex of the Great Lakes Water Quality Agreement (GLWQA). This webinar will summarize ongoing efforts to manage excess phosphorus loads that are leading to toxic and nuisance algal […]

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 […]

Please join us on Friday, November 15th from 1:00-3:00pm EST / 12:00-2:00pm CST for a webinar that will provide a brief overview of information and updates on work under the Nutrients Annex of the Great Lakes Water Quality Agreement (GLWQA). This webinar will present ongoing efforts to manage excess phosphorus loads leading to toxic and […]

The Great Lakes Water Quality Agreement commits Canada and the United States to prepare and issue a Binational Strategy for Phosphorus Reduction in Lake Erie. This Strategy includes: The Strategy [PDF] (1.05 MB) was developed by the Nutrients Annex Subcommittee.