The concept of the 'Anthropocene' has gained considerable traction in geological and environmental circles, though its formal recognition as a new epoch remains contentious. Proponents argue that human activities, particularly since the mid-20th century, have left a distinct and permanent marker in the stratigraphic record, such as radioactive isotopes from nuclear tests and microplastics in sedimentary layers. Conversely, critics contend that geological time scales are far too vast for such a recent and relatively thin layer to warrant a separate epoch, suggesting instead that these changes might be better classified as a 'geological event' within the Holocene. This debate underscores a fundamental tension between the precise, empirical standards of stratigraphy and the broader, more urgent narrative of human impact on Earth's systems.
❓ What is the main point of disagreement between proponents and critics of the Anthropocene as described in the passage?
A. A. Whether human activities have caused any permanent changes to Earth's geology.
B. B. Whether the geological evidence for human impact is significant enough to define a new epoch.
C. C. Whether radioactive isotopes or microplastics are more reliable markers of human impact.
D. D. Whether the Holocene epoch has ended or continues to the present day.
✅ 正确答案
B. Whether the geological evidence for human impact is significant enough to define a new epoch.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
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