Stainforth, D.A., Aina, T., Christensen, C., Collins, M., Frame, D.J., Kettleborough, J.A.,  Knight, S., Martin, A., Murphy, J., Piani, C., Sexton, D., Smith, L., Spicer, R.A., Thorpe, A.J., Webb, M.J., Allen, M.R. (2005) ‘Uncertainty in predictions of the climate response to rising levels of greenhouse gases‘, Nature, 433 7024: 403-406. DOI: 10.1038/nature03301. Abstract.