Brave Blue World

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.

Several testimonials, including some from some Hollywood celebrities, about their views and solutions on how to solve the global water crisis.

I never thought I would find a doc. about helping planet Earth and its population bad, until I saw this.

It is an absolute chaos, starting with inconsistencies about what is said by each interlocutor, to gross editing errors, like the images (it is at the level of hearing aid ads or telemarketing about smoothies machines) to the sound and the terrible choice of the soundtrack, but above all, for not giving us anything relevant to retain on such an important subject.

When dairy or meat production industries are not mentioned once, pretty much everything is said about the purpose of this "documentary".

Worth a few points for references to a couple of technologies that in the future may help solving the problem, but not right now.

I am a chemist, engineer, and water resource scientist. While I'm always happy to see a documentary raise awareness of water availability/quality issues, this documentary has a number of issues of its own.

First of all, the so-called 'solutions' being offered by its sprawling list of do-gooder celebrities are not innovative, novel, or sustainable. They're well-proven technologies putting temporary band-aids on deep sociopolitical problems for the sake of making their celebrity sponsors feel good.

Second, the film has a number of corporate sponsors. As a result, it failed to touch on some very real issues with the way we currently treat water. For example, Reverse Osmosis is disgustingly inefficient. It wastes about half the water it treats. It also absolute munches through power, and the waste stream from RO is a concentrated pollutant being shot back into the environment. But Suez, one of the sponsors, is a major player in RO and membrane desalination. So that got glossed over.

Third, it perpetuates the myth of a straight-up bogus technology. Humidity-condensers are not viable products. They've been debunked over and over and over again. The thermodynamics of converting whatever small amount of moisture is in the air to drinking water are enormous. And other than that lone instance of local innovation, the rest of the documentary reeks of western-savior complex.

This documentary is mental candy. Replaces real nutrition, and is bad for your teeth (from all the clenching).

Bias, unsupported with facts, eco-fanatics opinions...and opposition opinions not permitted. The involvement of these high profile celebrities is suspect, too. They've invested in these schemes, so from a perspective, it's an infomercial for their personal wealth.

There's *an identical* "documentary", "A Thirsty World" (2012), that gives the same message. Here we are, eight years after that one, and not one prediction has come to fruition. Actually, some have proven to be the exact opposite of the doom and gloom forecast.

Some nice scenery, if you have a large screen, but otherwise, you can watch with no volume

'It never ceases to amaze when the critics come out to play. I just can't figure out why they've zeroed in on a *positive* piece as this. It's astounding. I'd normally ignore yet I know for a fact - human nature dictates - there's hundreds of positive folk for each 'hater' (scientific or bias accuser) up here. Yes, I get that there's DuPont and others. I concur the big players are not playing well. Yet, we collectively must (must!) work towards the good stuff.

As far as I'm aware this is an optimistic look at the options. I commend the makers and I too am biased, I've known of this in the works for years. I am thrilled it's out there and moreover grateful, to cut-through the chat and get the new message to the new scientist who will over time weed out the institutionalized neg-heads. Sorry to sound crass or cruel, I don't mean to. But the gentle whiff of positivity needs to be encouraged and protected. Go make your own documentary and let me know and I'll support you all the way. Meantime, please treat this one as a 'asks the right questions' piece, that let's remember has really make it to the mainstream, as this has! A piece of work to inspire and hopefully to lead by! Congratulations!''