1. Faculty of Physical Sciences and Engineering University of Southampton Southampton SO17 1BJ, England, U.K.
2. Met Office Hadley Centre Exeter EX1 3PB, England, U.K.
3. Department of Economics University of Sussex Falmer, Brighton BN1 9RH, England, U.K.
4. Institute of Geography Christian-Albrechts University Kiel, Germany
5. Global Climate Forum Berlin, Germany