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 or biological events, 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 impacts are not synchronous globally, with different regions experiencing changes at different times, making a single global boundary difficult to establish. Proponents counter that markers like the radioactive isotopes from mid-20th-century nuclear tests provide a clear, worldwide signal. This debate highlights a deeper issue: whether geological classification should prioritize measurable physical evidence or acknowledge the unprecedented scale of human agency in shaping planetary processes.
❓ According to the passage, what is the main reason some scientists oppose the formal recognition of the Anthropocene as a geological epoch?
A. A) Human impacts are not evenly distributed across the globe, complicating the identification of a single start date.
B. B) The markers used to define the epoch, such as nuclear fallout, are not detectable in all regions.
C. C) The concept focuses too much on human agency and ignores natural processes.
D. D) The proposed epoch does not have enough physical evidence to support its existence.
✅ 正确答案
A) Human impacts are not evenly distributed across the globe, complicating the identification of a single start date.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
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