Challenges faced when using radiocarbon measurements to estimate fossil fuel emissions in the UK.

Angelina Wenger1, Simon O'Doherty1, Matthew L Rigby1, Anita Ganesan2, Alistair Manning3 and Grant Allen4, (1)University of Bristol, School of Chemistry, Bristol, United Kingdom, (2)University of Bristol, Bristol, United Kingdom, (3)UK Meteorological Office, Climate Research, Exeter, United Kingdom, (4)University of Manchester, Manchester, M13, United Kingdom