Human population and the environment SC.912.L.17.18

Too many people! Human society and its impact on the biosphere were transformed by the Industrial Revolution, which added machines and factories to civilization during the 1800s Led to: – Homes – Clothes – Electronic devices – Large-scale agriculture – automobiles

Energy demand As these conveniences were produced, energy was needed to fuel the machinery responsible for production-coal, oil, natural gas

Pollution and Crowding Cities and industries discarded wastes from manufacturing, energy production, and other sources directly into the air, water, and soil Urban centers became crowded, so people began to move from cities to suburbs – Caused a spread of suburban communities across American landscape

Concerns Certain kinds of industrial processes pollute air, water, and soil Dense human communities produce waste that must be disposed of Suburban growth consumes farmland and natural habitats, and can place additional stress on plant and animal populations

Lesson to learn… As the population increases (and it is currently rising to almost 7 billion people), the demand for resources and energy also increases As the demand for them increases, so does the pollution and habitat loss