Tim manages an Oxford Martin School programme at the University of Oxford which explores ways of removing carbon dioxide from the atmosphere.
The programme assesses a wide range of proposed techniques to remove carbon dioxide from the atmosphere to determine which if any of them are technically feasible, environmentally safe and socially acceptable.
He has a broad interest in the potential of proposed geoengineering techniques as a response to climate change, and in the governance issues associated with them.
He has investigated in detail one potential geoengineering technique, that of adding alkalinity to the ocean as a way of enhancing its capacity to act as a carbon sink and to counteract the effects of ocean acidification. He is also interested in how proper governance can ensure that any research in this field is undertaken in a responsible way.
Tim is one of the authors of the Oxford Principles - a set of draft guidelines for the conduct of geoengineering research which have been adopted as policy by the UK Government.