The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch characterized by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were defined by natural climatic shifts or biological events, the Anthropocene is marked by anthropogenic markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels. However, the formal recognition of this epoch remains contentious. Some scholars argue that the term is more cultural or political than strictly geological, as human effects are not uniform across time or space. Others contend that the scale and permanence of human modifications, particularly since the mid-20th century, justify its inclusion in the geological timescale. The debate highlights a fundamental tension between scientific classification and human agency.
❓ 文章によると、人新世が地質学的な時代として正式に認識されることが議論されるのはなぜか。
A. A. 人間の影響は地理的にも時間的にも不均一であるため。
B. B. なぜなら、核爆発の放射性降下物やプラスチック汚染は永続的な痕跡ではないからだ。
C. C. なぜなら、人為的な環境変化を裏付ける地質学的証拠が存在しないからである。
D. D. 科学者たちは、自然の気候変動がすべての時代を定義すると同意しているからである。
✅ 正确答案
A. Because human impacts are geographically and temporally uneven.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
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