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2023
Journal article
Did our ancestors nearly die out?
Genetic analyses suggest an ancient human population crash 900,000 years ago Earth’s climate system began to change during the Middle Pleistocene transition, which is associated with a severe cooling phase about 900,000 years ago. How this change might have affected human populations is difficult to determine, because the human fossil...Ashton, Nick ; Stringer, Chris
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2023
Journal article
Earliest systematic coal exploitation for fuel extended to ~3600 B.P.
Coal has long fueled human civilizations. The history of systematic coal fuel exploitation has been traced back to the late third millennium before present (post-2500 B.P.). Although sporadic combustion of coal for fuel was reported in some prehistoric archaeological sites, evidence for the systematic exploitation of coal for fuel before...Qiu, Menghan ; Liu, Ruiliang ; Li, Xingyuan ; Du, Linyao ; Ruan, Qiurong …
China, metallurgy, and coal