Recently, Dr. Oppo et al. published a study on Scientific Reports where, by using methane-derived authigenic carbonates, they reconstruct the trends of methane emission from the global seafloor over the last 150 Ma (you can read it open access here). At the long geological time scale, the sea level change and the burial of organic matter have been identified as major controls on the methane release.
The article has been showcased on a science news piece on EOS, published by AGU.
