Towns nearby theme parks are inundated with visitors. The increasing numbers of tourists have trampled natural sites and wilderness. The increasing world population has enormous impact on quality of life, distribution of wealth, depletion of natural resources, availability of educational opportunities and city planning. As population continues to increase globally, concerns can be raised about diverse issues. The availability of clean water will become an even greater issue as pollution continues to flow into streams and waterways.
Climatic changes can result in areas of widespread drought.
Methods of obtaining freshwater are being stressed. Over the last century, a truly natural habitat has become a rarity. Rainforests have been cut and cleared. Deserts have been scraped for urban growth. Rivers and streams have been dammed or diverted to provide water for human use.