雅思阅读

📖 Reading Passage

The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch defined by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were characterized by natural climatic shifts or biological events, the Anthropocene is marked by human-induced changes such as nuclear fallout, plastic pollution, and accelerated species extinction. However, the formal recognition of this epoch remains contentious. Critics argue that the markers of human activity are not uniformly distributed across geological strata, making a clear global boundary difficult to establish. Proponents counter that the sheer scale and permanence of human modifications, such as altered nitrogen cycles and the proliferation of technofossils, warrant a distinct epoch. This debate highlights a fundamental tension between geological precision and the broader narrative of human influence on planetary history.