4min chapter

Uncharted with Hannah Fry cover image

17. The Golden Spike

Uncharted with Hannah Fry

CHAPTER

Concrete and the Anthropocene Epoch

This chapter examines the significant rise in concrete usage and its implications for defining a new geological epoch. Researchers explore sediment samples from Crawford Lake, revealing a nuclear signature that marks the beginning of the Anthropocene, linked to historical nuclear tests despite Canada's lack of a nuclear weapons program.

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