雅思阅读

📖 Reading Passage

The concept of 'environmental carrying capacity' has long been a cornerstone of ecological theory, yet its application to human societies remains contentious. While traditional models assume a linear relationship between population growth and resource depletion, recent research suggests that technological innovation and social adaptation can effectively recalibrate this capacity. For instance, the Green Revolution dramatically increased agricultural yields in the mid-20th century, temporarily alleviating fears of mass starvation. However, critics argue that such technological fixes often defer rather than solve underlying sustainability crises, as they may introduce new ecological stressors, such as soil degradation or water pollution. This debate highlights a fundamental tension between optimistic techno-centric perspectives and precautionary ecological viewpoints, underscoring the need for integrated policies that consider both human ingenuity and planetary boundaries.