"We humans are the greatest of earth's parasites"

Martin H. Fischer's quote recommends that people are the most harmful types on Earth. He implies that human beings are parasites, taking resources from the planet without providing anything back. This is an apt description of the mankind, as we have caused immense damage to the environment and other species through our activities such as logging, overfishing, and pollution. We have likewise caused the extinction of lots of types, and continue to do so. Our unsustainable practices have triggered climate change, which is having a destructive impact on earth. It is clear that human beings are the greatest of Earth's parasites, which we should act to decrease our negative influence on the environment.