Climate scientists have devised a simplified formula, based on models and observations, to describe one of the consequences of climate change: drought regions will continue to dry out in the future climate; those with a moist climate will experience additional rainfall. In short: dry gets drier; wet gets wetter (DDWW). In a recent study in Nature Geoscience published September 14th, this formula has been challenged by a team of climate researchers from ETH Zurich and MPI-BGC director Markus Reichstein.