雅思阅读

📖 Reading Passage

The concept of the 'Anthropocene' has gained significant traction in geological and environmental circles, though its formal recognition as a new epoch remains contentious. Proponents argue that human activities, particularly since the mid-20th century, have left indelible markers in the geological record, such as radioactive isotopes from nuclear tests, microplastics, and elevated carbon dioxide levels. These markers, they contend, justify a distinct stratigraphic boundary. However, skeptics within the geological community question whether these changes are substantial enough to represent a global, synchronous event, or whether they merely reflect a prolonged transition within the current Holocene epoch. This debate underscores a deeper tension between human-centric narratives of planetary change and the rigorous, evidence-based criteria of geological classification.