The trend is also that the UK is getting more rain because of warming (well we shall see if the Gulf Stream collapses...) but also more erratic rain.

So perhaps there will be something interesting to be done with water management, flood plains, and rice growing.

Asian domesticated rice isn't the only kind of rice. Several related species grow wild in central North America, particularly in the wetlands around the Great Lakes and on the Prairies. Naturally cold-adapted rice. It may have been domesticated at some point in the past by the indigenous peoples, which might explain its favourable properties. Despite the common name "wild rice" most wild rice consumed today is commercially cultivated.