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If I had to peg a date on it I'd use the date of the first atomic detonation at Trinity testing ground. That would leave a radioactive trace band around the wor
by api 9y ago
If I had to peg a date on it I'd use the date of the first atomic detonation at Trinity testing ground. That would leave a radioactive trace band around the world and definitely marks the emergence of hominids as a geological force.
- refurb 9y agoWhat about the refining of mercury and lead? That predates Trinity and you can find elevated levels in environmental samples long before that period.
- theandrewbailey 9y agoI agree. It seems strange to mark the beginning of the age as a peak of some activity that had been going on for a bit. If it's defined by a change in the earth's composition, the ramp up to the peak is absolutely a change.