1. Greenhouse Gases and Aerosols / R.T. Watson, H. Rohde, H. Oeschger, U. Siegenthaler -- 2. Radiative Forcing of Climate / K.P. Shine, R.G. Derwent, D.J. Wuebbles and J-J. Morcrette -- 3. Processes and Modelling / U Cubasch and R.D. Cess -- 4. Validation of Climate Models / W.L. Gates, P.R. Rowntree and Q-C. Zeng -- 5. Equilibrium Climate Change / J.F.B. Mitchell, S. Manabe, T. Tokioka and V. Meleshko -- 6. Time-Dependent Greenhouse-Gas-Induced Climate Change / F.P. Bretherton, K. Bryan and J.D. Woods -- 7. Observed Climate Variations and Change / C.K. Folland, T. Karl and K.Ya. Vinnikov -- 8. Detection of the Greenhouse Effect in the Observations / T.M.L. Wigley and T.P. Barnett -- 9. Sea Level Rise/ R.A. Warrick and H. Oerlemans -- 10. Effects on Ecosystems / J.M. Melillo, T.V. Callaghan, F.I. Woodward, E. Salati and S.K. Sinha -- 11. Narrowing the Uncertainties / G. McBean and J. McCarthy.