'Report card' gives Mississippi River basin a D+

A report card is out on the Mississippi River basin, and the grade is not good: a D+, with an aging transportation infrastructure topping the list of concerns.

Measuring phosphorus loss from Midwest crop fields

Field runoff from farms in the Lake Erie basin is often rich in soluble plant nutrients, including phosphorus. When this nutrient-rich runoff reaches the lake, the phosphorus can support abundant algal blooms that contaminate ...

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