The document discusses the consequences of a growing world population, including increased demand for resources like food, water, housing, education, and jobs. This population growth can also lead to problems like poverty, lack of opportunities, homelessness, and pollution. Some impacts of human activities on the environment mentioned are global warming, the greenhouse effect, ozone depletion, and various forms of pollution. The document suggests that in order to protect the environment for the future, humans need to properly manage environmental consequences, practice the 3Rs of reduce, reuse, recycle, and engage in activities like reforestation and conservation efforts.