The concept of the 'Anthropocene' has gained traction among geologists and environmental scientists as a proposed new geological epoch characterized by significant human impact on Earth's geology and ecosystems. Proponents argue that markers such as plastic pollution, nuclear fallout, and elevated carbon dioxide levels provide clear stratigraphic evidence of human influence. However, critics contend that the term is more cultural than scientific, pointing to the difficulty of defining a precise start date, with suggestions ranging from the advent of agriculture to the mid-20th century. They also note that geological epochs typically span millions of years, whereas human impact, though profound, is relatively recent. This debate highlights the tension between scientific classification and the urgency of environmental advocacy, raising questions about how we formalize our current era.
❓ 根据这篇文章,批评者们关于人类世的主要争议点是什么?
A. A) 缺乏足够的标记物,如塑料污染
B. B) 难以确立一个明确且公认的起点
C. C) 地质过程中人类影响的缺失
D. D) 提议应将其归类为文化术语,而非科学术语。
✅ 正确答案
B) The difficulty in establishing a clear and agreed-upon starting point