by Ph.F. Sexton et al., Nature, 2011 ‘Hyperthermals’ are intervals of rapid, pronounced global warming known from six episodes within the Palaeocene and Eocene epochs (~65–34 million years (Myr) ago)1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13. The most extreme hyperthermal was the ~170 thousand year (kyr) interval2 of 5–7 °C global warming3 during the Palaeocene–Eocene Thermal Maximum (PETM, 56 Myr ago). The PETM is widely attributed … Continuer la lecture de Eocene global warming events driven by ventilation of oceanic dissolved organic carbon →