The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch defined by human impact on Earth's systems. Unlike previous epochs, which are identified by natural stratigraphic markers, the Anthropocene is characterized by anthropogenic signatures such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels. However, the formal recognition of this epoch remains contentious. Critics argue that human influence is not uniform temporally or spatially, making it difficult to establish a clear chronological boundary. Proponents counter that the mid-20th century 'Great Acceleration' offers a distinct marker, as post-1950 deposits exhibit unprecedented and synchronous changes across multiple proxies. This debate underscores a fundamental tension in geology: whether to prioritize a narrative of human intervention or adhere strictly to naturalistic criteria for stratigraphic classification.
❓ According to the passage, what is a primary reason for the controversy surrounding the formal recognition of the Anthropocene?
A. A) Human impacts are not visible in geological strata.
B. B) There is disagreement over whether a clear temporal boundary exists for human effects.
C. C) Most geologists reject the idea of human-driven environmental change.
D. D) The proposed epoch lacks any stratigraphic markers.
✅ 正确答案
B) There is disagreement over whether a clear temporal boundary exists for human effects.
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