As Director of the NERC Sea Mammal Research Unit he was responsible for advising Defra and the Scottish Government about policy related to marine mammals.
He is currently a senior scientist in the Climate Division of NERC's National Centre for Atmospheric Science (NCAS-Climate), located in the Department of Meteorology at the University of Reading; and a Research Fellow in climate change at the Met Office Hadley Centre.
Research has been funded by a range of organisations, including: NERC, BBSRC, The Royal Society, The Leverhulme Trust, The British Ecological Society, The Biodiversity Trust, The Royal Entomological Society, South Northamptonshire Council, Friends of the Upper Nene (FUN), The University of Northampton, English Partnerships,