Nutrients
The International Joint Commission invited public comment on recommendations made by the International Red River Board in a report describing proposed nutrient concentration objectives and nutrient load targets for the Red River at the boundary between the United States and Canada.
In 2015, the Canadian province of Ontario and the US states of Michigan and Ohio joined the Western Basin of Lake Erie Collaborative Agreement, committing to reduce nutrient levels entering the lake by 40 percent by 2025, compared to 2008 levels.
Between 2007 and 2012, the amount of commercial fertilizer applied to agricultural watersheds draining to the western Lake Erie basin declined in the United States but increased in Ontario, according to a…
US EPA Champlain TMDL webpage:
https://www.epa.gov/tmdl/lake-champlain-phosphorus-tmdl-commitment-clean-water
New Harmonized Data Helps Track Nutrient Pollution Sources in Great Lakes and Red-Assiniboine Basins
The Data Harmonization Task Force was created by the IJC in 2008 to harmonize and combine Canadian and United States datasets of transboundary watersheds to make mapping and analyzing these watersheds easier for public and private researchers.
Lakes Champlain and Memphremagog in the Quebec, Vermont and New York region experience high levels of phosphorus and harmful algal blooms that have negative impacts on surrounding communities and ecosystems.