The transient response of global-mean precipitation to increasing carbon dioxide levels Andrews, T., and Forster, P.M. June 2010. Environmental Research Letters, v.5. http://iopscience.iop.org/article/10.1088/1748-9326/5/2/025212/meta;jsessionid=46E4143D603A39DFEB27FB5C385F6897.c1