雅思阅读

📖 Reading Passage

The concept of sustainable development has evolved significantly since its popularization in the late 20th century. Initially focused primarily on environmental conservation, it now encompasses a broader triad of economic growth, social equity, and ecological balance. Critics argue that this expansion has diluted the term's original urgency, allowing governments to prioritize economic metrics over environmental degradation. However, proponents contend that integrating social dimensions is essential, as poverty and inequality often exacerbate environmental harm. Empirical studies suggest that regions with high income disparity tend to exhibit weaker enforcement of environmental regulations, leading to unsustainable resource extraction. Thus, sustainable development may best be understood not as a fixed blueprint, but as a dynamic framework requiring constant negotiation among competing interests.