Some people think that Planet Earth has too many people. According to the US. Census Bureau, the
world’s human population is currently 7.5 billion people, and the United Nations predicts that humans will
teach 8 billion people by about 2024 (in five years from now). Ecologically speaking, how many people can
Planet Earth sustain? Have humans reached a point in population size that makes us an ecological pest?
Is the world's human population already creating ecological problems or disasters? Do we need to stop
human population growth as China did with its one-child policy to protect the ecology of Earth? Do you
think the world's human population has exceeded its carrying capacity on Earth? Investigate the ecological
aspects of human overpopulation and write an essay about it.