The concept of the 'Anthropocene' has gained traction among geologists and environmental scientists as a proposed new geological epoch characterized by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were defined by natural climatic shifts or biological events, the Anthropocene is marked by anthropogenic markers such as radioactive isotopes from nuclear tests, plastic pollution, and elevated carbon dioxide levels. Proponents argue that these markers are distinct and persistent enough to warrant a formal boundary in the geological time scale. However, critics contend that the term overstates humanity's influence relative to natural processes, which have historically driven planetary change over millions of years. They also question whether the human footprint is globally synchronous, as geological epochs require a clear, worldwide starting point. This debate highlights the tension between scientific classification and the broader narrative of human agency in shaping the planet.
❓ Según el pasaje, ¿cuál de las siguientes es una razón clave por la que algunos científicos se oponen a definir formalmente el Antropoceno como una época geológica?
A. Los marcadores de la actividad humana no son suficientemente distintos de los procesos naturales.
B. La influencia humana en el planeta es demasiado reciente para ser medida con precisión.
C. Los marcadores propuestos pueden no aparecer simultáneamente en todo el mundo.
D. El término 'Antropoceno' es demasiado cargado políticamente para uso científico.
✅ 正确答案
The proposed markers may not appear simultaneously across the globe.
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