Erosion occurs and the soil is washed away or soil particles are blown away in the winds. When land is cleared of vegetation in watershed areas that drain into rivers, lakes, streams, estuaries, etc., soil erodes into the water and the silt smothers the fish and plant life. When pollutants drain into these waters, the toxins kill aquatic life and the pollutants can be carried through the water far distances. When pollution destroys an area, like the devastating Exxon Valdez oil spill and the Chernobyl nuclear accident. Environmental disasters such as these affect whole biospheres and damage all living things for thousands of miles for many, many years.
Nuclear contamination can last for longer than lifetimes.
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