Content Tagged As waterways

4 years 2 months ago

Great Lakes reach 'biological tipping point'

Michigan assistant attorney general Robert Reichel says the threat of Asian carp to the Great Lakes has reached a "biological tipping point" and the waterways leading into Lake Michigan have become a "carp highway." The comments came Monday during the first hearing in a multi-state lawsuit demanding tougher action...

4 years 5 months ago

Removing tamarisk may not boost water supply

A U.S. Geological Survey report suggests clearing tamarisk, or salt cedar, from waterways doesn't significantly boost streamflow in the long-term. The tree has spread since being used in the 1900s for erosion control. A coalition of groups working to restore the Arkansas River basin says the watershed has...

4 years 8 months ago

Officials search for Asian carp in Chicago area

Wildlife officials have begun their hunt for the destructive Asian carp in Chicago-area waterways. Officials already have DNA evidence that suggests the fish has made it past the area's electric fish barriers. Now, they're looking for actual fish. Crews are focusing on areas where warm water from industrial operations...

5 years 1 month ago

Mercury leaking at closed California mine sites

Abandoned mercury mines throughout central California's rugged coastal mountains are polluting the state's major waterways, rendering fish unsafe to eat and risking the health of at least 100,000 impoverished people. But an Associated Press investigation found that the federal government has tried to clean up fewer than a dozen...

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