Why include water purification and desalination ?
Clean water, together with food and energy, forms the trio of basic needs critical to any human culture, a truth readily apparent in todays developing world, where as of 2000, 1.2 billion people lack access to clean water[6], and 1.7 billion are without electricity[7]). In all but the very driest areas of the earth, access to clean water is largely a question of available energy (for pumping, transport, and purification). Healthy aquaculture also requires water processing and filtration; thus, it is sensible to explore safe drinking water for humans as part of any integrated energy/aquaculture system.