Brave Blue World is a documentary exploring the exciting new technologies and innovations that have the potential to solve the world's water crisis. The film highlights scientific and technological advancements that have been taking place, often behind the scenes, to ensure the world's population has access to clean water and safe sanitation services and the environment is protected. Narrated by actor Liam Neeson, Brave Blue World features scientists, engineers and activists from around the world, including Matt Damon, who co-founded global non-profit Water.org, and Jaden Smith, co-founder of non-profit 501CThree, which is providing water filtration systems to communities in Flint, Michigan.
Some interesting technologies but missing some key points
A number of these technologies are very interesting and promising, but the notion that they're a panacea, that the technology is all there and all that lacks is political will, investment and societal change is frankly false. The energy intensity of many of these solutions is a key problem that was not covered, whilst the prohibitive cost of installing and maintaining others, particularly in developing countries, was not really mentioned. Furthermore, the biggest anthropogenic uses of water, e.g. for irrigation, provide some of the greatest opportunities to reduce water use, so that using marginal sources to reach the very high levels of purity required for drinking may not be required. But innovations in irrigation which dwarf other savings were hardly mentioned at all. It's great to see this massive issue in the popular mainstream, and I credit the creators with achieving that, but a more thoroughly researched sequel would be helpful in due course.
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