James Clark is widely recognized as internationally leading in his work on green and sustainable chemistry and its application to the development of new bio-based chemicals and materials, and on biorefineries and waste valorization. He has started and led some of the most important green and sustainable chemistry initiatives in the world in education, commercialization, networking and publishing.  This includes establishing the world’s largest green chemistry centre for research and education and being first editor of the world’s no 1 journal in the area, Green Chemistry. His activities are worldwide and as well as holding a senior professorship at the University of York he holds Visiting Professorships in universities including Fudan and Sichuan in China.  He has received honours and prizes reflecting the breadth of his activities including honorary doctorates from universities in Belgium, Germany, Portugal and Sweden and prizes from the UK, Europe and the USA including the 2021 European award for green and sustainable chemistry. His currently leads the EU BBI “CHAMPION” project on bio-based polymers and his previous research has led to spin-out companies including Addible (bio-plastics and recycling waste plastics) and Starbons (bio-based materials from waste).  His invention of the bio-based solvent Cyrene is being commercialized by the Circa Group including a new €60+M manufacturing plant in France.  James has published over 600 articles (H-index 93) with recent publications in leading journals including Nature, Nature Communications, Applied Catalysis B, Green Chemistry and Angew Chemie.