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I'm interested in better understanding the ongoing geological processes that shape St. Louis and the Mississippi Valley region. So far, I've been looking into the history of seismicity in the region, focusing on the fascinating but little known history of the New Madrid earthquakes of 1811 and 1812 -- the most devastating earthquakes to have hit the US east of the Rockies. I've also been exploring how St. Louis and surrounding areas are dealing with the possibility of another earthquake occurring in the future. According to one article I read, one of the biggest uncertainties is what would happen to the heavily engineered Mississippi River in the case of another major tremblor. The shaking could break the levees, flooding wide areas along the river and creating cascading effects. The flow of the river might also reverse completely, as occurred during the New Madrid earthquakes.

On these possibilities and the lack of scientific consensus surrounding intraplate seismicity in this zone, see this article in The Atlantic.

On current efforts to create earthquake hazard maps in St. Louis, see this overview on the US Geological Survey site.

For a deeper dive into the history of the New Madrid earthquakes, see this book by historian of science Conevery Bolton Valencius. 

To help the government with air pollution, people can try to use their cars less. This can be done through walking, biking, or carpooling to their destinations. This will help lessen the usage of fossil fuels that decrease the air quality. Although this may not seem like much, if more and more people begin to do this, eventually the results will begin to show

Newark is considered an ironbound community because it is surrounded by industry all around it. Because of this, this leads to an increase in air pollution. On top of all that, the many roads that lead through Newark carry the harmful gases that pollute the air

Yes and no. Communities should be able to do something about their air quality in their area but within the state's command. For example, states should have a state regulation on air quality and be able to enforce that regulation. However, individual communities should be able to do what they want to meet that state regulation on air quality. With this, communities still have the freedom to do something about their air quality while the state maintains its power

EPA is collecting data about the air quality in the ironbound communities. This data is used to find what causes the air pollution and EPA is working to fix the problem and improve the overall health of the communities