The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch defined by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were characterized by natural climatic shifts and biological evolution, the Anthropocene is marked by human-induced changes such as nuclear fallout, plastic pollution, and accelerated species extinction. However, the formal recognition of this epoch remains contentious. Critics argue that human activity has been altering the environment for millennia, making it difficult to pinpoint a precise starting point. Proponents suggest the mid-20th century, coinciding with the 'Great Acceleration' of industrial growth and global-scale impacts, as the most appropriate boundary. This debate highlights broader questions about how humanity's legacy will be preserved in the geological record and whether our species' influence warrants a distinct stratigraphic designation.
❓ 本文によると、人新世の正式な認定が論争の的となっているのはなぜか。
A. A) 人間の環境への影響は、自然の変化に比べて比較的小さいものであったから。
B. B) 人間の影響がいつ明確な地質時代を定義し始めたかについて意見の相違があるため。
C. C) 核降下物やプラスチック汚染は、耐久性のある地質学的指標とは見なされていないからである。
D. D）なぜなら、人新世の概念は科学界からの支持を欠いているからである。
✅ 正确答案
B) Because there is disagreement over when human influence began to define a distinct geological epoch.
IELTS Reading Tips
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