Illinois Case (Wabash Case) involved a railroad company, Wabash, St. ... The U.S. Supreme Court ruled in 1886 that Illinois' granger laws were unconstitutional because they attempted to control interstate commerce, which had been deemed a responsibility of the federal government by Gibbons v.
I wonder whether there would be also other options, but one very important aspect is the smog: the city center is where many industry-relevant things meet: the factories are all around it, transport, cars... and since it is surrounded by bad air, the air takes longer to dissipate. This is especially visible if the city is in a valley, such as Mexico city foe example.
Water is a precious resource everywhere in the country, but its importance is magnified in New Mexico's arid climate. ... New Mexico's natural beauty and open space help to draw new residents to the state, putting additional pressure on water resources.