For the first time the ICPR has presented a report on the estimation of the effects of climate change on future Rhine water temperature development in the near future (2021-2050) and the far future (2071-2100). This estimation is based on the air temperature development as defined in the scenario study for the discharge regime of the Rhine (cf. ICPR Report No. 188, 2011). The report is available in a short ((cf. ICPR Report No. 213, 2014). and a long version and supplements the IKSR publications on the long-term Rhine water temperature development in the period 1978 -2011 (ICPR Report No. 209, 2013) and on the possible effects of these changes on aquatic biocoenoses (ICPR Report No. 204, 2013).