Answer: Once an individual understands negative forces, they can change positively.
Example: Overpopulation, pollution, fossil fuel combustion, and deforestation are all examples of how humans affect the physical environment, although, people can help ecosystems through recycling, establishing wildlife preserves and parks, passing green and open space legislation, planting trees, and enacting environmental rules.
(sorry if this doesn't make enough sense and it's not really about social forces, more about economic)
