EarthPollution in US rivers is widespread and will persist More than half of the country's streams and rivers are in a poor condition for aquatic life, according to the Environmental Protection Agency 51¶¯Âþ
EarthMussels with backpacks monitor Mississippi's health Sensors that monitor individual mussels' behaviour will keep watch on the ebb and flow of pollutants in the Mississippi 51¶¯Âþ