雅思阅读

📖 Reading Passage

The concept of 'environmental carrying capacity' refers to the maximum population size of a species that an ecosystem can sustain indefinitely, given the available resources. In ecological studies, this notion is often applied to human populations, where it becomes intertwined with technological advancement. While some argue that innovation can continually expand carrying capacity, others contend that there are biophysical limits that technology cannot overcome. A key factor is the distinction between renewable and non-renewable resources. For renewable resources, sustainable use depends on consumption rates not exceeding regeneration rates. For non-renewable resources, depletion is inevitable, but the timeline can be extended through recycling and substitution. Recent research suggests that the concept is not static; it shifts with changes in consumption patterns, social organization, and environmental conditions. Therefore, assessing human carrying capacity requires a multidisciplinary approach, integrating ecology, economics, and sociology to predict future sustainability accurately.