雅思阅读

📖 Reading Passage

The concept of the 'Anthropocene' has gained considerable traction in recent geological discourse, though its formal status remains contested. Proponents argue that human activities, particularly since the mid-20th century, have left a distinct stratigraphic signature, including radioactive isotopes from nuclear tests, microplastics, and elevated carbon dioxide levels. These markers, they contend, justify a new geological epoch. Conversely, skeptics point to the diachronous nature of human impact, which began at different times across the globe, undermining the synchronous global boundary required for a formal epoch. Furthermore, they argue that the term risks oversimplifying the complex, uneven relationships between human societies and the environment, potentially obscuring the specific historical and regional responsibilities for ecological change. Thus, the debate is not merely taxonomic but reflects deeper questions about how science frames human agency in Earth's history.