In Chapter 6: The  Environment – Part I, Hite and Seitz (2016) note that pollution and  global warming were an important concern of the first world conference  on the environment that was held in Sweden in 1972. Principle 6 of  that declaration stated that we must stop the release of pollutants and  heat that cannot be effectively processed by our environment  (Declaration of the United Nations Conference on the Human Environment.  1972. Chapter 11. p. 2. <https://www.ipcc.ch/apps/njlite/srex/njlite_download.php?id=6471>).

Thinking about the  different types of pollutants and heat that can be effectively processed  by our environment, which are the most critical to address? Identify  three pollutants you consider to be the most critical to address and  explain why you believe they are most important.