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 systems. Unlike earlier epochs, which were characterized by natural climate shifts and biological evolution, the Anthropocene is marked by the pervasive influence of industrial activity, including elevated atmospheric carbon dioxide levels, widespread plastic pollution, and alterations to the nitrogen cycle. Proponents argue that these changes are stratigraphically distinct, appearing in sediment layers as a 'technofossil' record. However, critics contend that the term lacks formal geological precision, as human effects are asynchronous across the globe, and they question whether it should be defined by a specific date, such as the onset of nuclear testing in the mid-20th century. This debate highlights a broader tension between scientific classification and the recognition of humanity's transformative role.