The analysis of economic implications of climate change is fraught with difficulty, and it is impossible to survey all potential impacts of climate change as no existing scenario or model can fully describe the workings of the entire physical world and how all physical, chemical, geological and biological processes influence each other. Impacts of climate changes will thus depend on how rapidly they occur, how large the changes are, as well as the adaptability of societies and ecosystems. As such, many analyses are based on factors that lend themselves to some degree of quantification, but climate change will also have effects which are difficult to quantify, or which cannot meaning- fully be quantified.