Tim has spent his entire career working in biodiversity monitoring or management. He started his career in the forerunner of the Environment Agency as a Fisheries and Conservation Scientist where he developed the largest river biodiversity programme in the UK with fish, breeding birds and higher plants quantified along every river in Lincolnshire. He left this to found what is now the Institute of Environmental Assessment (IEMA) and after that to found and manage Operation Wallacea. Opwall is a sustainable way of funding biodiversity research and international research teams comprising 200+ academics and supported by paying students have produced 650 papers in peer reviewed journals. During the pandemic when expeditions were not possible then Tim developed a method with a large international consultation group for quantifying how a unit of biodiversity gain could be defined. Tim is currently CEO of rePLANET an organization that funds ecosystem restoration and protection using carbon and biodiversity credit funding at 25 sites around the world.