How Would a New Maunder Minimum Affect the Climate? Georg Feulner [[email protected]], Potsdam Institute for Climate Impact Research, Germany Although the current solar minimum appears to be finally coming to an end, its exceptional length has led to suggestions that during the 21st century the Sun might enter a new Grand Minimum similar to the 17th-century Maunder Minimum. This has been widely discussed both by scientists and in the public, with many speculations about a new “Little Ice Age” offsetting global warming from anthropogenic greenhouse gas emissions. Here I present results of simulations with a fully coupled climate model forced with solar irradiance corresponding to past Grand Minima of solar activity and with scenarios for future human greenhouse gas emissions, showing that a new Maunder Minimum would only slightly diminish future warming. Finally I will comment on recent predictions on the development of global temperatures in the next few decades.