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Hmiel, B.; Petrenko, V. V.; Dyonisius, M. N.; Buizert, C.; Smith, A. M.; Place, P. F.; Harth, C.; Beaudette, R.; Hua, Q.; Yang, B.; Vimont, I.; Michel, S. E.; Severinghaus, J. P.; Etheridge, D.; Bromley, T.; Schmitt, J.; Fain, X.; Weiss, R. F.; Dlugokencky, E. (2020). Preindustrial 14CH4 indicates greater anthropogenic fossil CH4 emissions. Nature, 578(7795), pp. 409-412. Springer Nature 10.1038/s41586-020-1991-8
