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 collisions, the Anthropocene is characterized by markers like radioactive isotopes from nuclear tests, plastic pollution, and elevated carbon dioxide levels. However, the formal recognition of this epoch remains contentious. Some scholars argue that human influence, while profound, is not yet comparable to the long-term, planet-scale changes that define earlier geological boundaries. Others counter that the rapid acceleration of anthropogenic effects since the mid-20th century, termed the 'Great Acceleration,' justifies a distinct classification. This debate highlights the tension between geological precision and the need to acknowledge humanity's unprecedented role in shaping the planet's future.
❓ Según el pasaje, ¿cuál es la razón principal de la controversia en torno al reconocimiento formal del Antropoceno como una época geológica?
A. A. Los marcadores del impacto humano, como los plásticos y los isótopos nucleares, no están distribuidos globalmente.
B. B. Algunos expertos cuestionan si los cambios inducidos por el ser humano son lo suficientemente significativos como para igualar las fuerzas geológicas naturales.
C. C. La 'Gran Aceleración' solo se ha observado en las últimas décadas, lo cual es demasiado breve para una clasificación geológica.
D. D. Existe desacuerdo sobre si el Antropoceno debería definirse por los niveles de dióxido de carbono o por isótopos radiactivos.
✅ 正确答案
B. Some experts question whether human-induced changes are significant enough to match natural geological forces.
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