A warmer Britain may also be wetter, at least seasonally, which might
suggest that the frequency and magnitude of riverine flooding may incr
ease. It may be difficult, however, to distinguish the effects of clim
ate warming from the effects of continuing land use change, given the
naturally stochastic nature of the inputs into hydrological systems. P
rediction of the effects of climate change on riverine flooding is cle
arly very uncertain. These uncertainities need to be assessed, particu
larly for more extreme events. Further research on data collection tec
hniques and model improvements to reduce levels of predictive uncertai
nty is required.