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 anthropogenic markers such as radioactive isotopes from nuclear tests, plastic pollution, and elevated carbon dioxide levels. However, the formal recognition of this epoch remains contentious. Critics argue that the term is more cultural or political than scientific, since human impacts vary widely across time and space, making a single global stratigraphic boundary difficult to identify. Proponents counter that the mid-20th century 'Great Acceleration' in industrialization and consumption provides a clear and synchronous marker, aligning with the spread of technofossils in the geological record. This debate highlights the intersection of scientific classification and human agency, raising questions about how we define planetary change and our role within it.