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. Unlike earlier epochs, which were distinguished by natural climatic shifts or biological events, the Anthropocene is characterized by markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels. However, scholars debate its formal ratification, with some arguing that human influence began thousands of years ago with early agriculture, while others pinpoint the mid-20th century 'Great Acceleration' as the definitive start. This controversy is not merely semantic; it influences how scientists frame environmental policy and public perception of our responsibility toward planetary stewardship.
❓ 文章によると、人新世の開始時期をめぐる議論の主な理由は何ですか？
A. 地質学者たちは、その時代を定義する指標の種類について意見が一致していない。
B. 異なる学者たちは、人間の影響の様々な歴史的時期を強調している。
C. この概念は、正式に承認されるための十分な科学的証拠を欠いている。
D. 環境政策は、開始日を早めることによって悪影響を受けることになるでしょう。
✅ 正确答案
Different scholars emphasize varying historical periods of human impact.
IELTS Reading Tips
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