@article {1622, title = {Impact of changes in diffuse radiation on the global land carbon sink.}, journal = {Nature}, volume = {458}, year = {2009}, pages = {1014-1018}, author = {Mercado, L.M. and Bellouin, N. and Sitch, S. and Boucher, O. and Huntingford, C. and Wild, M. and Cox, P.M.} }