The concept of the 'Anthropocene' has sparked considerable debate among geologists, who question whether human activity has fundamentally altered the Earth's geological record. Proponents argue that markers such as plastic pollution, nuclear fallout, and elevated carbon dioxide levels constitute a distinct stratigraphic signature. However, critics contend that these changes, while significant, do not yet meet the formal criteria for a new epoch, which typically requires a global and synchronous signal preserved in rock layers. This disagreement highlights a broader tension between scientific classification and the urgency of environmental advocacy, as the term's popular usage often outpaces its technical validation.
❓ ¿Cuál es la razón principal por la que algunos geólogos se oponen a formalizar el Antropoceno como una nueva época?
A. A. Los impactos humanos aún no son visibles en los estratos geológicos.
B. B. Los marcadores propuestos carecen de una señal globalmente sincrónica y duradera.
C. C. Los grupos de defensa ambiental han influido demasiado en la decisión.
D. D. Los niveles de dióxido de carbono no han aumentado de manera suficientemente significativa.
✅ 正确答案
B. The proposed markers lack a globally synchronous and enduring signal.
IELTS Reading Tips
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