Fossil algae reveal 500 million years of climate change
Wednesday, November 28, 2018 - 15:30
in Earth & Climate
Scientists have succeeded in developing a new indicator (proxy) of ancient CO2 levels, using the organic molecule phytane, a debris product of chlorophyll. This new organic proxy not only provides the most continuous record of CO2 concentrations ever, it also breaks a record in its time span, covering half a billion years.