Increasing evidence links large igneous provinces, climate change, and extinction events throughout the Phanerozoic. This session addresses the possible links between these events, focusing on the geological mechanism and processes leading to environmental changes, like release of gases from magmas and from the sedimentary basins into which they intrude and through which they erupt. A main aim of the session is to merge proxy data and isotope studies with geological processes and extinction data and mechanisms. Papers are invited across the possible spectrum of investigations, which include petrology, isotope geochemistry, field measurements, biostratigraphy, geochronology, climate modeling, and geodynamics. The session encourages submissions particularly on the Siberian Traps and the end-Permian extinction, the Triassic-Jurassic boundary (CAMP) and Mesozoic oceanic anoxic events (Ontong Java and Caribbean), the KPg boundary (Deccan Traps) and the Cenozoic (North Atlantic).