雅思阅读

📖 Reading Passage

The concept of the 'Anthropocene' has sparked considerable debate among geologists, who question whether human activity has fundamentally altered the Earth's geological record. Proponents argue that markers such as plastic pollution, nuclear fallout, and elevated carbon dioxide levels constitute a distinct stratigraphic signature. However, critics contend that these changes, while significant, do not yet meet the formal criteria for a new epoch, which typically requires a global and synchronous signal preserved in rock layers. This disagreement highlights a broader tension between scientific classification and the urgency of environmental advocacy, as the term's popular usage often outpaces its technical validation.