text: Regarding the models used to predict the future for polar bears, remember that Steven Amstrup, who is now a full time spokesperson for Polar Bears International , was the only polar bear expert consulted about how polar bears might respond to the sea ice changes generated by climate models. As Ive pointed out previously ( here and here ), Amstrup appears to have been wrong, at least as far as his predictions on polar bear responses to declines in summer sea ice (July-September) are concerned.