More people are moving to urban areas, and local ecosystems need wilderness spaces to keep the environment healthy. Urban wilderness promotes health and happiness among residents, cleans the air and creates life-giving oxygen. These areas heavy on trees and plants also help to hold ground and rain water for future use. American Forests is an organization that studies municipal forests and the repercussions of declining natural areas in cities. Marcus Hiles supports their mission to educate the general public about why these areas are beneficial to communities. Beyond the benefits of shade reducing heat retention and cooling vehicles by fifty degrees, just two trees can produce enough oxygen for one person and absorb twenty pounds of air pollution annually. As our cities grow, it is vital that residents create, maintain, and are able to benefit from urban wilderness areas.