Dr Josep Canadell is an eminent world authority and leader in global biogeochemistry, focusing on the impact of human activities on the carbon cycle and global greenhouse gas budgets. He has pioneered work on the dynamics of natural carbon sinks, global carbon stocks, and the biogeophysical processes that drive Earth’s carbon exchanges, producing the most authoritative global greenhouse gas budgets. His research serves as a reference in global biogeochemistry and climate change assessments. Dr Canadell has demonstrated sustained global influence and leadership in translating greenhouse gas information to support climate negotiations and policy development.