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Climate Change
Fossil fuel emissions could soon make it impossible for radiocarbon dating artefacts that are hundreds of years old
Carbon released by burning fossil fuels is diluting radioactive carbon-14 and artificially raising the radiocarbon 'age' of the atmosphere.
Climate Change
UA scientists find evidence of Roman period megadrought
A multi-decade drought that occurred in the 2nd century has been revealed by researchers from the University of Arizona by studying tree-rings (dendrochronology).
Climate Change
Unravelling causes of Ice Age extinctions
What caused the extinction of Ice Age megafauna? Was climate change responsible or human activity that caused the woolly mammoth and woolly rhinoceros to go extinct?
