This Is about Whether the World Is Overpopulated or not

Is the World Overpopulated or Not?
Many ecologists view human overpopulation as the foundation of all environmental problems. Thus many believe the most important environmental groups in the world to be ones like Zero Population Growth (ZPG). On the opposing side would be Population Research Institute (PRI).
According to Zero Population Growth web site, "currently at 263 million, the U.S. population is growing by about 2.5 million people each year, making the United States one of the worlds fastest-growing industrialized nations" (ZPG, 2000).
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