The air pollution generated by one community will impact other communities, and depending upon the nature of the air pollutants, the impacts can be far-reaching. For example, when the Chernobyl nuclear accident happened, the resulting radiation was spread throughout the globe, and especially impacted its nearby neighboring countries (You are encouraged to read the following: http://www.greenfacts.org/en/chernobyl/ (Links to an external site.)) . Please read the following article and state your opinions on international air pollution and the pros and cons of international regulations. http://pubs.acs.org/doi/full/10.1021/acs.est.5b03827