Why does the Grand River experience more problems with pollution than most other Michigan rivers?
The Grand River flow through a number of industrial and agricultural areas which lead to an increase in pollutants. Major point source pollutants coming from factories dumping waste directly into the river have been eliminated, yet non point sources such as gas, oil and chemical runoff are still problems in some areas. Agriculture also leads to non point source pollution. Clean up has been going on for many years, but parts of the river still do not meet federal guidelines for fishing or swimming. Grand River water treatment facility at Fitzgerald Park. What factors influence Michigan weather the most? The Great Lakes play an important role in the in the heating and cooling of air surrounding Michigan as well as the amount of precipitation that falls. The Great Lakes help to keep summer temperatures cooler and winter temperatures warmer. When cold winter air travels across the warmer Great Lakes, lake effect snow is sometimes the result. The Great Lakes add heat and moisture to the air