Can we use carbon isotopes to tell us about past levels of CO2 in the atmosphere?...by Barry Lomax and Melanie Leng on February 04, 2019 atmospheric CO2 carbon cycle carbon isotopes Centre for Environmental Geochemistry climate systems geochemistry Thale cress +
Drilling into the Bowland Shale...by Joe Emmings on September 03, 2015 borehole Bowland Shale carbon cycle Carboniferous drill core hydraulic fracturing organic matter shale gas University of Leicester +