Isotope Data Suggests Fossil Fuels Not to Blame for Increase Methane bubbles up from swamps and rivers, belches from volcanoes, rises from wildfires, and seeps from the guts of cows and termites (where is it made by microbes).
Not exact matches
Also a quick and dirty overlay of extinction rates
suggests some correllation of extinction to either peaks or troughs of the finer - binned O
isotope data.
135: It has been
suggested that the 100 ka cycle in oxygen
isotope data is due to changes in orbital inclination relative to the invariable plane (perpendicular to the solar system's angular momentum).
Boron
isotope data Arabian Margin (Neo-Tethyan Ocean) combined with a quantitative modelling
suggest that during the latest Permian, increased ocean alkalinity primed the Earth system with a low level of atmospheric CO2 and a high ocean buffering capacity.