The Mesozoic Era represents a dynamic greenhouse interval, marked by frequent perturbations of the climate system. Proxy records reveal complex relationships between CO₂ and temperature, including apparent intervals of decoupling between greenhouse forcing and climatic response that represent critical puzzles to solve if we are to understand long-term climate sensitivity and Earth system functioning under warm climates.

This session focuses on Mesozoic climate evolution using multi-proxy reconstructions of CO₂, temperature, and seawater chemistry, alongside Earth system modelling. We look to showcase records across key intervals such as Triassic carbon isotope excursions, the End-Triassic Mass Extinction, Jurassic and Cretaceous Oceanic Anoxic Events, the Cretaceous Temperature Maximum, and transient cooling episodes. We also welcome studies using non-traditional proxies tied to carbon cycling, weathering, and productivity.

By integrating geochemical, sedimentological, and modelling approaches, this session aims to constrain climate sensitivity and carbon-cycle dynamics in greenhouse climates and provide context for future climate change.

• GC - Global Environmental Change
• OS - Ocean Sciences