Quote by Michael Rank
““Genghis and his immediate descendants killed upwards of 40 million people, causing millions of acres of farmland to go untended and return to the wild. This massive destruction caused global carbon levels to plummet and the first and only case of man-made global cooling.””
![“The population explosion is the primary force behind the remaining six groups of critical global events [diminishing land resources, diminishing water resources, the destruction of the atmosphere, the approaching energy crisis, social decline, and conflicts/increasing killing power].” quote by Ron Nielsen](https://sms4smile.com/quotes/img-quotes/cf3/ron-nielsen-198716_energy-crisis_the-population-explosion-is-the-primary_2409284.jpg)
