The concept of the 'Anthropocene' has gained traction among geologists and environmental scientists as a proposed new geological epoch defined by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were shaped by natural forces such as volcanic activity or asteroid impacts, the Anthropocene is characterized by markers including plastic pollution, elevated carbon dioxide levels, and the global spread of radioactive isotopes from nuclear tests. However, the formal recognition of this epoch remains contentious. Some scholars argue that human-induced changes, while profound, have not yet produced a distinct stratigraphic signature comparable to those of earlier boundaries. Others contend that the rapid acceleration of industrialization since the mid-20th century, often termed the 'Great Acceleration', justifies a clear demarcation. This debate underscores the challenge of integrating human history into deep geological time scales, raising questions about how future geologists will interpret our current era.
❓ According to the passage, what is the main reason for the controversy surrounding the formal recognition of the Anthropocene?
A. A. The lack of any human-induced geological markers.
B. B. The disagreement over whether human changes have created a distinct stratigraphic signature.
C. C. The absence of radioactive isotopes from nuclear tests.
D. D. The overemphasis on natural forces in previous epochs.
✅ 正确答案
B. The disagreement over whether human changes have created a distinct stratigraphic signature.
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)
Manage time: about 20 minutes per passage; skip difficult questions first