Which aspect does the 3rd Natural Step cover?

The third principle of The Natural Step deals specifically with the degradation of natural systems and the changes that occur in society that lead to such degradation. This aspect emphasizes the importance of ensuring that human activities do not result in physical degradation of the environment.

The focus here is on preventing the harmful impacts that arise from human interventions, such as deforestation, soil erosion, and habitat destruction, which can lead to long-term environmental issues. By addressing these degradation processes, the principle promotes a sustainable balance where societal development does not compromise the integrity of the ecosystems we rely on.

The other options may touch on significant environmental issues but do not directly relate to the specific concern of physical degradation in the context of societal activities outlined by The Natural Step's principles. This distinction is essential for understanding the broader framework of sustainability that The Natural Step advocates.