Direct Pedestrian Traffic. Absorb dust and heat. Add oxygen to the air. Reduce soil, water and air pollution. Increase atmospheric moisture, reduce enviromental water consuption.
Some trees even provide key medicinal ingredients for illness cures and treatments.
Provides neccessary habitats for thousands of animals from birds to land animals to water animals. Filter runoff and sediment from slopes next to the stream. Increases groundwater supply which we use as a water supply for cities. Provides shade so water animals can survive, keeps the river cool, provides food for water-loving animals. Fish require healthy riparian areas and will sometimes die without them.