ANTHROPOCENE × TECHNOLOGY

The Epoch That Was Refused

2024 CE

Phanerozoic · Cenozoic · Quaternary · Holocene · Meghalayan

Geologists voted against making the Anthropocene a formal epoch. Not because human impact is small, but because a formal epoch needs a single agreed marker in the rock and a single start date, and the proposal, which put the boundary at 1952 in the mud of a Canadian lake, did not convince. The vote was challenged on procedure and upheld.

Why it matters

The last division on this timeline is the one the discipline declined to draw. It is worth knowing why: the objection is not to the phenomenon but to the shape of the definition, since an epoch is a chapter with a first page, and a species changing a planet over two centuries does not have one. The Anthropocene remains real, useful and unofficial.

Dating & uncertainty

The proposal to define an Anthropocene epoch beginning in 1952, with a lake in Canada as its reference point, was rejected by the stratigraphic body responsible in March 2024. The vote was contested procedurally, and upheld.

Sources

1. Witze (2024), Nature · It's final: the Anthropocene is not an epoch, despite protest over vote
2. Maslin & Lewis (2024), Nature · Why it was right to reject the Anthropocene as a geological epoch
3. Zalasiewicz et al. (2024), Nature · The meaning of the Anthropocene: why it matters even without a formal geological definition

Earth history as one day

23:59:59.000038 µs before midnight

if Earth’s 4.54 billion years were compressed into a single day