# Giuseppe Etiope Back to [[Abiogenic Oil and the Fossil Fuel Debate]] · [[Research and Evidence]] **Role:** Geochemist; specialist in abiotic methane and gas seepage - Lead author of ["Abiotic methane on Earth" (*Reviews of Geophysics*, 2013)](https://doi.org/10.1002/rog.20011). It finds that abiotic methane is widespread in small amounts but generally far below 1% of gas in commercial fields. - ⚠️ Affiliation (INGV, Rome) from general knowledge.