WILLMAR -- Like a stuck accelerator pedal, we've speeded up the delivery of sediment to Lake Pepin so that it will fill up in a mere 300 or so years, instead of the 3,600 years that natural processes ...

Just as water moves through a river, rivers themselves move across the landscape. They carve valleys and canyons, create floodplains and deltas, and transport sediment from the uplands to the ocean.

The drought in Southwest Colorado has triggered a dredging operation on McPhee Reservoir to remove sediment that blocks delivery of water to irrigation canals during the reservoir’s lowest level. The ...

Picture an hourglass lying on its side, the top resting in the Mississippi River to capture the sands of time floating downstream from the Midwest. The sand flows through the neck of the hourglass and ...

The improvement in the water quality of Lake Erie has been trumpeted as one of the great environmental success stories. Since the 1960s, the lake has become less prone to eutrophication, water clarity ...