The consumption of water has grown enormously over the last 100 years, brought about by a growing population, and increased economic activity. The availability of water has been an issue in many parts of the world, affecting billions of people to a lesser or greater degree. But it is fair to say the onset of climate change is making water scarcity even more acute in those areas and this is set to continue as climate change impacts in the coming decades become more prevalent. Desalination technology has been deployed in many countries around the world, helping to alleviate water shortages. His thought-piece considers the role of this important technology today and in the future.