Rate My Professor Mike O’Sullivan

O’Sullivan is a co-author of the annual Global Carbon Budget reports, including the highly cited 2023 edition published in Earth System Science Data. Key publications include 'Process-oriented analysis of dominant sources of uncertainty in the land carbon sink' (Nature Communications, 2022), 'Aerosol–light interactions reduce the carbon budget imbalance' (Environmental Research Letters, 2021), 'Evaluating nitrogen cycling in terrestrial biosphere models: a disconnect between the carbon and nitrogen cycles' (2023), 'The key role of forest disturbance in reconciling estimates of the northern carbon sink' (2024), and 'Assessing Model Predictions of Carbon Dynamics in Global Drylands' (2022). These works, with over 13,000 total citations, address uncertainties in land carbon sinks, biosphere modelling, aerosol effects, and regional carbon dynamics, influencing global climate assessments. He is affiliated with the Earth System Science research group, the Weather and Climate Science theme in Mathematics and Statistics, and the Exeter Climate Systems centre. O’Sullivan engages publicly on climate issues, offering expert analysis on COP conferences and fossil fuel emissions trends through media and the Global Carbon Budget Office.