air pollution, harmful substances in the air, global warming, a gradual increase in world temperatures, deforestation, the destruction of forests by people, overpopulation, too many people for the amount of food, materials, and space available, ozone layer depletion, holes in layer of air containing ozone high above the earth, loss of biodiversity, when animals and plants become endangered species, water pollution, throwing waste into rivers, lakes and other water areas, waste disposal, there is not enough land for dumps due to massive waste production .

Environmental Problems

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