Rice is most often grown under continuous flooding and uses large quantities of irrigation water. The effects of climate change will exacerbate the incidence of droughts and floods, and sustainable food security will depend on increased agricultural production and reduced consumption of irrigation water. In areas where water availability could pose problems, the use of irrigation systems adapted to water constraints is driving the development of new technologies. On the one hand, this will enable rational water management; on the other, it will create varieties adapted to aerobic cultivation, which remains an alternative to parsimonious management of water and inputs, thus guaranteeing sufficient production.