Humans bring in lots of impact such as new species, waste, and air pollution. This affects many things in the grand canyon. The water has become dirty and the air is polluted. Sometimes people and animals come into the park that can disturb other things in the canyon. Some areas have been affected by loud noises. The rumbling of aircraft passing by and wild land fire suppression.
The most human impact on the Grand Canyon has happened recently in the 20th century. The canyon was always a well known area since 1900 due to many explorers and scientists that wrote about their visit. In 1919, the park was established and the amount of visitors increased greatly. Now, around 5 million visitors come by each year.
Because of the air pollution caused by humans, there is a haze that makes it hard to see the canyon in some areas. The haze is from small particles in the air caused by coal-burning power plants. Forest fires also can cause very bad visibility issues. Another cause is pollutants that fall out as nitrogen and sulfur deposition. Organic compounds, soot, and dust also contribute to the reduction of the visibility.
The most human impact on the Grand Canyon has happened recently in the 20th century. The canyon was always a well known area since 1900 due to many explorers and scientists that wrote about their visit. In 1919, the park was established and the amount of visitors increased greatly. Now, around 5 million visitors come by each year.
Because of the air pollution caused by humans, there is a haze that makes it hard to see the canyon in some areas. The haze is from small particles in the air caused by coal-burning power plants. Forest fires also can cause very bad visibility issues. Another cause is pollutants that fall out as nitrogen and sulfur deposition. Organic compounds, soot, and dust also contribute to the reduction of the visibility.