My Darling Gangrenous River is the devastation caused by erosion from grazing animals and a significant drop in the water levels of the Darling River where it meets the Murray River. The water has been removed from both River systems for irrigation. The result is the fragile river bed is exposed, and with low water flows blue-green algae takes a hold.  The erosion spreads like gangrene, and the poisoned water kills everything in the river.  It is truly a landscape of decay.