The concept of the 'Anthropocene' has gained significant traction among geologists and environmental scientists, referring to the current geological epoch in which human activity has become the dominant influence on climate and the environment. While the term was popularized in the early 2000s by Nobel laureate Paul Crutzen, its formal adoption as a geological epoch remains contentious. Critics argue that the markers of human impact, such as nuclear fallout and plastic pollution, are not yet sufficient to define a clear boundary in the stratigraphic record. Proponents, however, contend that the scale and irreversibility of human-induced changes, including biodiversity loss and altered nitrogen cycles, warrant a distinct classification. This debate underscores a deeper tension between scientific precision and the need to communicate the urgency of environmental crises.
❓ 围绕正式将“人类世”确定为地质时代存在争议的主要原因是什么?
A. A. 这个术语是由非地质学家保罗·克鲁岑推广开来的。
B. B. 一些科学家认为,人类活动对岩层的影响尚不明显。
C. C. 这一概念在环境科学家中并未得到广泛认可。
D. D. 没有证据表明生物多样性丧失或氮循环发生改变。
✅ 正确答案
B. Some scientists believe human impact is not yet clearly visible in rock layers.