The concept of the 'Anthropocene' has gained significant traction in geological and environmental circles, referring to the current epoch in which human activity has become the dominant influence on climate and the environment. While the term was popularized by atmospheric chemist Paul Crutzen in 2000, its formal recognition as a geological epoch remains contentious. Proponents argue that unmistakable markers, such as radioactive isotopes from nuclear tests and ubiquitous microplastics, justify a distinct boundary. Critics, however, contend that these signals are too diffuse and temporally inconsistent to meet the rigorous criteria of the geologic time scale. Moreover, the debate extends beyond stratigraphy to philosophical questions about humanity's role in shaping Earth's future, highlighting a profound shift in how we perceive our species' impact.
❓ ¿Cuál es la razón principal por la que algunos expertos se oponen a formalizar el Antropoceno como una época geológica?
A. A. Porque los impactos humanos aún no son visibles en los registros geológicos.
B. B. Porque los marcadores propuestos están demasiado dispersos y varían con el tiempo.
C. C. Porque Paul Crutzen carecía de la autoridad científica para proponerlo.
D. D. Porque el término se centra demasiado en la filosofía en lugar de en la ciencia.
✅ 正确答案
B. Because the proposed markers are too scattered and vary over time.
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