The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch, defined by humanity's profound impact on Earth's systems. Proponents argue that markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels are stratigraphically distinct, warranting formal recognition. However, critics contend that the term lacks precise temporal boundaries, as human influence began gradually across different regions and eras, from early agriculture to industrialization. This ambiguity, they suggest, undermines its utility as a formal chronostratigraphic unit, which typically requires a clear global boundary stratotype. Despite this debate, the term has proven invaluable for interdisciplinary dialogue, prompting scientists to consider the long-term consequences of human activity beyond traditional historical timescales.
❓ 一部の批評家が人新世を地質時代として正式に認定することに反対する主な理由は何ですか？
A. A) 人間の影響を示す証拠は、世界的に均等に分布しているわけではない。
B. B) 世界的に適用可能な明確な開始点が定義されていない。
C. C) 核降下物やプラスチックは地質学的指標としては適さない。
D. D) この用語は科学的な議論にのみ有用であり、公的な議論には適さない。
✅ 正确答案
B) It lacks a clearly defined start point applicable worldwide.
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