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.
The film is ok. The technologies shown are interesting and inspire some hope in the survival of the humanity, but the simplest and maybe the most important solution was not even mentioned. Ok, home filters of the "grey" water waste can save several thousand liters of water per month, but let's have a look at another example. The production cycle of just one liter of milk requires around a thousand liters of water; one burger patty requires several thousands liters. Just by switching to an oat or soy milk and ditching beef (and preferably all the meat) you will save enormous amounts of water, hundreds of thousands liters per year just in your household. We need to think globally. Water is used not only in our taps, but for all the products which we buy and we eat.
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