Armstrong, J. Scott; Green, Kesten C.; Soon, Willie - Volkswirtschaftliche Fakultät, … - 2007
forecasts of what will happen to the bears over the 21st Century. Scientific research on forecasting, conducted since the 1930s … population forecasts in light of these scientific principles. Much research has been published on forecasting polar bear … forecasts were the opinions of a single expert unaided by forecasting principles. Based on research to date, approaches based on …