雅思阅读

📖 Reading Passage

The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch, defined by humanity's profound impact on Earth's systems. Proponents argue that markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels are stratigraphically distinct, warranting formal recognition. However, critics contend that the term lacks precise temporal boundaries, as human influence began gradually across different regions and eras, from early agriculture to industrialization. This ambiguity, they suggest, undermines its utility as a formal chronostratigraphic unit, which typically requires a clear global boundary stratotype. Despite this debate, the term has proven invaluable for interdisciplinary dialogue, prompting scientists to consider the long-term consequences of human activity beyond traditional historical timescales.