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.
❓ 懐疑論者が人新世を地質時代として正式に定めることに反対する主な理由は何ですか？
A. A. 地質学的記録において、人間の影響の証拠は十分に明確には見えない。
B. B. 人為的な指標は世界的に同期しておらず、統一的な境界線を設けることは困難である。
C. C. 「人新世」という用語は一般には広く受け入れられていなかった。
D. D. パウル・クルッツェンは十分な科学的信頼性を欠いていた。
✅ 正确答案
B. Human-induced markers are not synchronized globally, making a uniform boundary difficult.
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