Climate change is happening, two billion people don't have a reliable and safe supply of fresh water, and the problem isn't likely to get a whole lot better on its own! Desalination is the process of making fresh water from salt water, but what is the current state of the technology? Find out on this episode of Petri Dish! Next time, we will discuss the near-future iterations on desalination! References: https://www.usgs.gov/special-topics/water-science-school/science/saline-water-and-salinity https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6801928/ https://www.usgs.gov/special-topics/water-science-school/science/where-earths-water https://water.ca.gov/water-basics/groundwater https://data.unicef.org/resources/progress-on-household-drinking-water-sanitation-and-hygiene-2000-2020/ https://www.sciencedirect.com/science/article/pii/S001191642100254X https://nap.nationalacademies.org/read/23659/chapter/14 https://phys.org/news/2019-08-technique-membranes-next-generation-filtration-desalination.html https://www.sciencedirect.com/science/article/pii/S0376738821002416 https://www.sciencedirect.com/science/article/pii/S0011916420313114