If people become wasteful and don't conserve resources now, the resources that were wasted will not be able to be used in the future. The United States is one of the most wasteful countries there is. We are more wasteful than necessary. Recycling has helped quite a bit, but the problem has not yet been fixed. The third is the environmental damage caused in the manufacturing of the goods consumed.
Manufacturing grows as people demand more manufactured goods.
If too much manufacturing takes place many plants and animals begin to suffer. It may not have an impact on us for a while, but after many years pass, the availability of food, water, and shelter will begin to decrease. Another problem caused by the rapid growth rate is to the environment. Bio diversity plays an important part in the survival of all species. It is the multiplicity of plants, insects, and animals on Earth that makes the survival of all species possible.