The early Paleogene interval is characterized by a greenhouse climate mode and represents the last phase of a long-term global warmth, which lasted for about 50 million years from the early Late Cretaceous up to the Eocene. The proposed session aims at understanding short-lived paleoenvironmental changes punctuating the early Paleogene warmth period. Several of these events have recently been described including among others the Dan-C2 Event, the Danian-Selandian transition, the mid Paleocene biotic event and the well known PETM and ELMO hyperthermals. Specifically, we invite contributions based on interdisciplinary studies combining sedimentological, geochemical and micropaleontological findings from different paleoenvironmental settings that provide new clues about the climate variability and the sea-level history within this greenhouse world.