Adriaan Perrels (PhD environmental economics) works in the Finnish Meteorological Institute as Research Professor, studying the economic consequences of climate change and the valuation of weather and climate services. Throughout his research career in the Netherlands and Finland his work area clustered around energy economics, infrastructure economics and environmental economics, involving both model-based explorative studies, as well as ex-ante and ex-post policy evaluations. Since the mid-nineties evaluation of climate policy took a growing share of the pie. The last 11 years he focused ever more on climate change impacts and adaptation in Finland, Europe and Globally. Among his 200+ publications are over 40 peer reviewed articles and books.