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 marked by natural phenomena such as glacial cycles or asteroid impacts, the Anthropocene is characterized by anthropogenic markers including plastic pollution, nuclear fallout from atomic tests, and elevated carbon dioxide levels. However, the official recognition of this epoch remains contentious. Critics argue that human activities have not yet produced a stratigraphic signature distinct enough to warrant a formal boundary, as these markers are still accumulating and may not be preserved in the geological record over millennia. Proponents counter that the scale and rapidity of change, such as the near-instantaneous global distribution of microplastics, are unprecedented and merit a distinct classification.