Read here. The prediction from climate "experts" and climate models was that human caused global warming will result in increased flooding of Germany's rivers. Empirical evidence does not support the prediction.
Bormann et al. analyzed multiple river characteristics, including flood frequency, peak discharge, peak stage and stage-discharge relationships.
"...driven by a desire to help resolve this climate-change impact debate, long time-series of stage and discharge data obtained from 78 river gauges in Germany...first established the nature of Germany's temperature history, noting that Schonwiese (1999) identified a homogenous positive trend of 0.5-1.0°C over the course of the 20th century, which was subsequently confirmed by Gerstengarbe and Werner (2008) and Bormann (2010)...they report that "most stations analyzed on the German rivers did not show statistically significant trends in any of the metrics analyzed.".....there is no other conclusion to be drawn but that the warming experienced in Germany over the past century has not led to unprecedented flooding throughout the country. In fact, it has not led to any increase in flooding." [Helge Bormann, Nicholas Pinter, Simon Elfert 2011: Journal of Hydrology]
Additional flood-drought, failed-prediction and peer-reviewed postings.