_:genid1 "Copyright protected. Obtain permission from the original figure source."^^ . "separating-human-and-natural-influences-on-climate" . "2.3"^^ . "Separating Human and Natural Influences on Climate"^^ . "adapted from Huber and Knutti"^^ . "Observed global average changes (black line), model simulations using only changes in natural factors (solar and volcanic) in green, and model simulations with the addition of human-induced emissions (blue). Climate changes since 1950 cannot be explained by natural factors or variability, and can only be explained by human factors. (Figure source: adapted from Huber and Knutti)."^^ . _:genid1 . . . . . . . . .