The concept of the 'Anthropocene' has gained considerable traction in geological and environmental circles, yet its formal recognition as a new geological epoch remains contentious. Proponents argue that human activities, particularly since the mid-20th century, have left indelible markers in the stratigraphic record, such as radioactive isotopes from nuclear tests and microplastics in sedimentary layers. Conversely, skeptics contend that the term 'epoch' implies a time scale far longer than the current human impact, and that the changes, while significant, may not yet meet the threshold of a distinct epoch. This debate underscores a deeper tension between scientific classification and the urgency of public discourse on climate change, where the label itself carries substantial political and social weight.
❓ 为什么人类世正式认定会引发争议？主要原因是什么？
A. 科学家们对于人类影响是否在地质记录中可见存在分歧。
B. B) 有人认为，人类引发的变化可能不足以长久持续，从而无法构成一个新的纪元。
C. C) “人类世”这一术语政治色彩过浓，不适合用于科学领域。
D. D) 沉积层中没有人类活动的证据。
✅ 正确答案
B) Some argue the human-induced changes may not be long-lasting enough to constitute a new epoch.