Journeys to four major river systems of the world to investigate the environmental problems facing those whose lives depend upon the health of their river. The Mississippi: Upstream towns are ravaged by periodic floods, while the health of the river's fishery is threatened by the loss of nutrient-rich sediments. The Amazon: Brazilian fisherman struggle to make a living as aquatic life in the world's mightiest river is affected by deforestation. The Jordan: In the arid landscape of the Middle East, availability of water is determined as much by poitics as by the environment. The Mekong: On a waterway that sustains people from six different nations, the Vietnamese are affected by upstream development and an economic boom.

CIRC # 403\\Originally broadcast as an episode of Journey to planet Earth on PBS in 2009. Special features: Abridged version (25 min.); Educators' guides (DVD-ROM). Public performance video.

The Mississippi -- The Amazon -- The Jordan -- The Mekong.