Ortega's forces are dredging the river as part of an Iranian-sponsored project to build a canal along the Isthmus of Nicaragua that will rival the Panama Canal.

CENTERFORSECURITYPOLICY: Why Latin America turned

One man spent months dredging the River Severn.

ECONOMIST: The man and his pen

Steps should certainly be taken to rebuild the coastal wetlands that have been eroded over time due to river dredging, oil drilling, and other human progressions.

CNN: Your e-mails: Balancing nature, commerce

In the waning days of the Clinton administration, the Environmental Protection Agency issued an edict that General Electric spend nearly half a billion dollars dredging the Hudson River to remove PCBs, which are supposedly carcinogenic.

FORBES: Fact and Comment

In the waning days of the Clinton ad-ministration, the Environmental Protection Agency issued an edict that General Electric spend nearly half a billion dollars dredging the Hudson River to remove PCBs, which are supposedly carcinogenic.

FORBES: Surplus?

The EPA said additional dredging would clean up the river faster, but it noted that other state and federal agencies have the authority to address the issue.

WSJ: GE to study Hudson River cleanup expansion

Dredging will continue over the next few years, after which the river should be PCB-free.

ECONOMIST: Pollution and evolution