In nature, any successful species can overshoot a habitat, consuming resources faster than Earth’s ecosystems can replenish them. On Earth today, indicators such as species extinctions, soil loss, and global warming – tell us that humans have reached this state of overshoot on a global scale. In seeking solutions, we may benefit from some historical perspective.
University of British Columbia professor Dr. William Rees and his colleague Mathis Wackernagel originated the “ecological footprint” analysis, now universally used to measure personal, family, or regional ecological impact. Rees estimates that humans now use about fifty percent more resources in a year than Earth can replenish. In 2010, Rees wrote “The Human Nature of Unsustainability” for the Post Carbon Reader, expl... Read more >