The Global Climate Risk Index 2017 analyses to what extent countries have been affected by the impacts of weather-related loss events (storms, floods, heat waves etc.). The most recent data available – from 2015 and 1996–2015 – were taken into account. The countries affected most in 2015 were Mozambique, Dominica as well as Malawi. For the period from 1996 to 2015 Honduras, Myanmar and Haiti rank highest. This year’s 12th edition of the analysis reconfirms that, according to the Climate Risk Index, less developed countries are generally more affected than industrialised countries. Regarding future climate change, the Climate Risk Index may serve as a red flag for already existing vulnerability that may further increase in regions where extreme events will become more frequent or more severe due to climate change. While some vulnerable developing countries are frequently hit by extreme events, there are also some others where such disasters are a rare occurrence.