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 events such as ice ages or asteroid impacts, the Anthropocene is characterized by anthropogenic markers, including radioactive isotopes from nuclear tests, plastic pollution, and elevated carbon dioxide levels. However, the formal recognition of this epoch remains contentious. Some scientists argue that the changes are so profound and rapid that they warrant a distinct stratigraphic boundary, while others contend that human influence, though substantial, has not yet produced a globally synchronous and permanent signal in the rock record. This debate highlights the challenge of integrating human history with deep geological time, forcing a reconsideration of how we define and divide the planet's history.
❓ 根据文章所述，正式承认“人类世”为新地质时代引发争议的主要原因是什么？
A. A. 所提出的人类世标志物既不够持久，也不够全球一致。
B. B. 大多数地质学家认为人类活动的影响微不足道，不足以改变地质构造。
C. C. “人类世”这一术语由非科学家创造，缺乏科学依据。
D. D. 人类引起的变化过于缓慢，以至于在岩石记录中无法观察到。
✅ 正确答案
A. The proposed markers of the Anthropocene are not permanent or globally consistent enough.