Tischer Creek snow melt

preview_player
Показать описание
Tischer Creek, a Duluth trout stream, during snow melt. As snow melts in the spring, stream flow increases as does the influx of accumulated pollutants into the water. Road salt and other pollutants are washed into urban streams causing problems for fish and the bugs that they eat.
Taken 4.30.2011
Рекомендации по теме