雅思阅读

📖 Reading Passage

The concept of the 'Anthropocene' has gained significant traction in geological and environmental circles, yet its formal recognition as a new geological epoch remains contentious. Proponents argue that human activities have left indelible marks on the stratigraphic record, such as radioactive isotopes from nuclear tests and microplastics in sedimentary layers. Conversely, skeptics contend that the proposed markers are not globally synchronous or sufficiently distinct from the Holocene, which began approximately 11,700 years ago. Moreover, the temporal scale of human impact, while profound, may be too brief to constitute a durable geological boundary. This debate underscores a fundamental tension between scientific classification and the broader narrative of human influence on Earth systems, raising questions about how we define and perceive our current geological era.