In older cities, a single system of pipes may transport sewage and stormwater runoff. As the climate crisis brings more intense storms, urban areas like Toronto are overhauling their drainage systems.
Great Lakes
Mapping Nutrient Inputs in the Great Lakes Basin
A new tool links nitrogen and phosphorus applications to land use classifications to better understand where and how much of the nutrients enter watersheds in the U.S. Great Lakes Basin.
Algae Blooms and Gas Wells Drive Lake Erie Methane Emissions
In one of the first studies to investigate large lakes as methane sources, researchers found that Lake Erie is releasing more of the potent greenhouse gas than expected.
Miners Left a Pollution Trail in the Great Lakes 6000 Years Ago
Scientists find evidence of ancient copper mining in polluted lake sediments from Isle Royale National Park.