fromMedievalists.net5 days agoMedieval Solar Storm Detected Through Tree Rings and Historical Records - Medievalists.netThe research team identified a sudden spike in carbon-14 between the years 1200 and 1201, pointing to a previously unknown solar proton event.History
OMG sciencefromwww.scientificamerican.com1 week agoMedieval poets wrote about auroras. Their work is providing clues to the solar cycleThree consecutive nights of auroras in 1204 over Kyoto were linked to solar events traced through tree rings and historical literature.
SciencefromNature9 months agoOld CO released from rivers complicates evaluations of fossil-fuel emissions59% of river-released CO₂ is from ancient carbon reservoirs with low carbon-14, affecting assessments of anthropogenic CO₂.