Group labels America's 10 most endangered rivers

The advocacy group American Rivers announced its 2014 list of the nation's 10 most endangered rivers, topped by the San Joaquin River in California. Its "outdated water management and excessive diversions leave the river dry in stretches, threatening water quality, fish and wildlife, agriculture, and leaving communities vulnerable in the face of drought," the group says.

Citations of other rivers mention oil and gas wells, industrialization, pipelines, levees, dams, excessive agriculture demands, pollution and safety concerns. The list varies widely from year to year, presumably to bring more rivers to public attention. (Read more)