Professor Robert B. Jackson is an expert on the carbon cycle in terrestrial ecosystems, including forests, grasslands, and wetlands. He has conducted pioneering research on the relationship between soil, vegetation, and soil bacterial communities. In addition, he has quantified the balance of greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, from natural ecosystems and from fossil fuel use. Since 2017, he has served as chair of the Global Carbon Project (GCP), leading efforts to monitor and reduce greenhouse gas emissions.