Ancient Chinese tombs reveal a hidden 4,000-year pattern

Tombs found throughout China, built from the time of the 4,000-year old Xia Dynasty to the present day, offer insight into long-term social and political trends. This conclusion comes from a study published October 29, 2025 in the open-access journal PLOS One by Quanbao Ma of the Beijing University of Civil Engineering and Architecture, China,…

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Crowds march on doorstep of UN climate talks in Brazil

Georgina RannardClimate and science reporter, Belém, Brazil BBC Marching to the beat of pounding sound systems, thousands of climate protesters have been bringing their message to the gates of the COP30 climate talks in Brazil. Chanting and singing “free the Amazon”, demonstrators in host city Belém have been carrying three giant coffins reading Oil, Coal…

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