A solar-powered water harvesting device, constructed with a metal organic framework. Unlike other types of water capture devices, this design is able to work under low-humidity conditions. (Hyunho Kim, Evelyn Wang)
A large cistern in the ancient city of Resafa, Syria, was filled by channeling periodic floods from a wadi west of the city. The use of complex systems for directing and harvesting water dates back thousands of years. Photo from “Ancient Water Harvesting Methods in the Drylands of the Mediterranean and Western Asia,” Brian Beckers et al., eTopoi, 2013.
In a world in which 14 percent of the population in the 21st century still defecate outdoors, children remain among the most vulnerable to a lack of toilets, contamination from human waste and dirty water.
As the demand for freshwater and energy increases in San Diego County and Northern Baja, the fresh water supply continues to shrink while energy generation remains heavily dependent on fossil fuels. Due to these opposing trends in supply and demand, it becomes increasingly imperative to identify solutions that move these communities to their preferred state in which they are largely reliant on renewable energy and use water sustainably. Large-scale energy solutions include wind power, one of the must abundant sources of energy in these regions. ... Read more about Geodesign Session 5 Road Map
There are several different directions that our planet can take to address the ever growing need for water and energy. This will involve integrating technologies of a large and small scale into our grid and into our homes as well. There are two main technologies in which to address large scale water sustainability: desalination and ‘pure water’ recycling. As the California dries out, it is increasingly important to adopt proven strategies to maintain the current standard of living. ... Read more about Geodesign Session 4 Water Sustainable Practices SD and No Baja