The concept of the 'Anthropocene' has gained significant traction in geological circles, though its formal recognition remains contentious. Proponents argue that human activities, particularly since the mid-20th century, have left indelible markers in the stratigraphic record, such as radioactive isotopes from nuclear tests and microplastics in sedimentary layers. Critics, however, contend that these signals are too heterogeneous and temporally shallow to constitute a distinct geological epoch, preferring to classify them as a 'technostratigraphic event'. This debate underscores a fundamental tension: whether the Anthropocene represents a genuine planetary-scale shift or merely an accelerated phase of the existing Holocene epoch. The resolution of this question holds profound implications for how we frame environmental policy and our collective responsibility towards Earth's future.
❓ Según el pasaje, ¿por qué los críticos se oponen al reconocimiento formal del Antropoceno como una época geológica?
A. Porque los cambios inducidos por el ser humano son demasiado uniformes y duraderos como para ser distintivos.
B. Porque los marcadores propuestos no son consistentes ni lo suficientemente profundos en el tiempo geológico.
C. Porque los isótopos radiactivos y los microplásticos solo se encuentran en capas terrestres.
D. Porque el concepto socava la importancia de la época del Holoceno.
✅ 正确答案
Because the proposed markers are not consistent or deep enough in geological time.
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