The concept of the 'Anthropocene' has gained significant traction in geological and environmental discourse, proposing that human activity has become a dominant force shaping Earth's systems. While the term was popularized by atmospheric chemist Paul Crutzen in 2000, its formal recognition as a geological epoch remains contentious. Proponents argue that markers such as plastic pollution, nuclear fallout, and elevated carbon dioxide levels provide clear stratigraphic evidence. Conversely, skeptics contend that these signals are too diachronous, appearing at different times across the globe, to define a synchronous boundary comparable to previous epochs. Furthermore, the Anthropocene Working Group's recent vote against formalizing the epoch highlights the scientific community's reluctance to alter the established geological timescale without unambiguous criteria. This debate underscores a broader tension between the need for precise scientific classification and the urgency of communicating humanity's profound environmental impact.
❓ 怀疑论者反对将“人类世”正式确立为地质纪元的主要原因是什么？
A. A. 人类活动影响的证据在地质记录中并不足够明显。
B. B. 人类引发的标志在全球范围内并不同步，这使得划定统一界限变得困难。
C. C. “人类世”这一术语并未被公众广泛接受。
D. D. 保罗·克鲁岑缺乏足够的科学可信度。
✅ 正确答案
B. Human-induced markers are not synchronized globally, making a uniform boundary difficult.