雅思阅读

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The concept of 'ecological footprint' has gained prominence as a metric for assessing human demand on natural capital. Unlike simpler measures of resource consumption, it accounts for the bioproductive land and sea area required to regenerate the resources a population consumes and to absorb its waste. Recent studies indicate that the global footprint now exceeds Earth's biocapacity by approximately 75 percent, a condition termed 'overshoot'. This overshoot is not uniform across nations; high-income countries typically exhibit footprints several times larger than those of low-income countries, despite the latter often bearing the brunt of environmental degradation. Critics argue, however, that the metric oversimplifies complex ecological dynamics, ignoring technological innovation and trade. Nevertheless, proponents maintain that it provides a crucial baseline for sustainability policy, urging a shift toward more equitable resource allocation and renewable energy adoption.