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greenhouse gases
Rising greenhouse gases have cooling effect on Antarctica’s atmosphere
A "negative greenhouse effect" means rising concentrations of CO2 and metha…
Homosapiens
Modern humans were already in northern Europe 45,000 years ago
DNA from bones found in a cave in Germany has been identified as from Homo sapiens, s…
universe
Newly discovered smoking stars emit huge clouds and we don’t know why
A never-before-seen type of star that puffs out enormous clouds challenges our ideas …
Archaeology
Traces of ancient life reveal a 3.4-billion-year-old ecosystem
Chemical analysis of rocks found in South Africa shows that ancient microorganisms su…
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