Why Are 96,000,000 Black Balls on This Reservoir?

  • Publicēšanas datums 10 mai 2019
  • I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there. The first time I heard about shade balls the claim was they reduce evaporation. But it turns out this isn't the reason they were introduced.
    Huge thanks to LADWP for arranging this special tour for me. Next time let's put the GoPro on the submersible!
    The balls are made of high density polyethylene (HDPE) which is less dense than water so they float on the surface of the reservoir even if they break apart. They are 10cm (4 inches) in diameter and contain about 210ml of water. So the main reason they are on the reservoir is to block sunlight from entering the water and triggering a chemical reaction that turns harmless bromide into carcinogenic bromate. This effect occurs with prolonged exposure to bromate so regulators insist that levels be kept below 10 microgram per liter on average over a 12 month period.
    Special thanks to Patreon supporters:
    Donal Botkin, Michael Krugman, Ron Neal, Stan Presolski, Terrance Shepherd, Penward Rhyme and everyone who provided feedback on an early draft of this video.
    Thanks to:
    Las Virgenes Reservoir for footage of initial shade ball dump
    Euro-Matic for bird into jet-engine footage
    Researched and Produced by Casey Rentz
    Animations by Maria Raykova
    Music from epidemicsound.com "Colorful Animation 4" "Seaweed"
    And from Kevin MacLeod "Marty Gots a Plan"
    This is an educational video about the science of water quality.

komentāri • 58 748

  • buck ewer
    buck ewer Pirms 14 Stundām


  • Cyrus Burke
    Cyrus Burke Pirms 15 Stundām

    What would happen if someone fell off the boat? Can you swim in that?

  • 鼓嘶鸣
    鼓嘶鸣 Pirms 15 Stundām

    if someone falls in, it will be dangerous.

  • Aaron Frampton
    Aaron Frampton Pirms 15 Stundām

    So....why isnt every other city having this bromate problem?

  • milinda Vashishth
    milinda Vashishth Pirms 15 Stundām

    This is so unnatural solution, blocking sun ? sun makes water live.. water is life .. live.. hope the scientist could think natural.. so many problems already because of just focusing on solution to 1 problem .. its horrible way indeed..

  • Smithdk1234
    Smithdk1234 Pirms 15 Stundām

    this is why wee gonna die to ouer self what are the do whit all those balls when ther finish in the balls well lets dump them in nature becors good for the nature and wee are smart human ......

  • Derek Day
    Derek Day Pirms 15 Stundām

    Could you not use a hovercraft instead of a boat? Balls are said fine in wind. But mainly I agree with Joanne Marks below, any plastic in water releases Estrogen like chemicals. I don't like to be racist like a certain president but this is a typical American high tech approach to fix a problem. Is there not a lower tech solution? that does not involve putting plastic micro-particles and estrogen chemicals into peoples water. How about the impact on wildlife?
    How about the solution used by the ottomans, underground cisterns. see en.wikipedia.org/wiki/Basilica_Cistern

  • Deez Titts
    Deez Titts Pirms 16 Stundām

    Because 95 million would be ridiculous??

  • Tahoedirt
    Tahoedirt Pirms 16 Stundām

    and how do I get the job of driving around in a boat ?

  • شفير القيامة
    شفير القيامة Pirms 17 Stundām

    🌹🌷💐 لا إله إلا الله ، محمد رسول الله 💐🌷🌹 There is no GOD but ALLAH, MUHAMMED is the Messenger of ALLAH🌹🌷💐 لا إله إلا الله ، محمد رسول الله 💐🌷🌹 There is no GOD but ALLAH, MUHAMMED is the Messenger of ALLAH🌹🌷💐 لا إله إلا الله ، محمد رسول الله 💐🌷🌹 There is no GOD but ALLAH, MUHAMMED is the Messenger of ALLAH🌹🌷💐 لا إله إلا الله ، محمد رسول الله 💐🌷🌹 There is no GOD but ALLAH, MUHAMMED is the Messenger of ALLAH🌹🌷💐 لا إله إلا الله ، محمد رسول الله 💐🌷🌹 There is no GOD but ALLAH, MUHAMMED is the Messenger of ALLAH

  • Tanja Isabel Aebischer
    Tanja Isabel Aebischer Pirms 17 Stundām

    1:27 This guy really looks and sounds like Christian Bale as Dick Cheney in Vice!

  • Jouc12 _
    Jouc12 _ Pirms 17 Stundām

    I thought based on the title that this was about the million man march.

  • Smoke YaSs
    Smoke YaSs Pirms 18 Stundām

    so some suckerass of a berkley student can make the world a better place by whoring himselfs out to a buncha degenerated asshats on YT to fall for his crapass clickbait.
    the fukc is wrong with the tube lately. it was always a fkn dirthole but lately we went from dirty to filthy.

  • Jeff Waller
    Jeff Waller Pirms 19 Stundām

    Why not 100,000,000? ...104,000,000? Maxed out the credit card?

  • Jeff Waller
    Jeff Waller Pirms 19 Stundām

    Seems like white balls would reflect heat and cool the surface better than black.

  • Doxpara aname
    Doxpara aname Pirms 19 Stundām

    that bs. seems like thoose inbred la hollywood jewish scum dont even know the effect of sunlought @ water !!!

  • KingThugga Tv
    KingThugga Tv Pirms 19 Stundām

    Why the world so against black anything if it's proven black is best not racist antics just science

  • Kristopher Christensen
    Kristopher Christensen Pirms 19 Stundām

    NPR talking going on here, many pauses....don't know if I can watch ....the whole thing. My question....why? IS this how he talks to his mom? His dad? His significant other? Who knows and who cares?

    AAA HHH Pirms 19 Stundām

    5:53 RIP BIRD.

  • Niterunner77
    Niterunner77 Pirms 20 Stundām

    Everything causes cancer in California..........

  • Zack Gray
    Zack Gray Pirms 20 Stundām

    thats alotta black balls

  • HMJ
    HMJ Pirms 20 Stundām

    5:52 - BRUTAL!!!

  • HMJ
    HMJ Pirms 20 Stundām

    1:49 - Imagine these black balls having mouths and jagged teeth on their own and chasing the nutritious human explorer in a jet boat. XD

  • HMJ
    HMJ Pirms 20 Stundām

    These are GANTZ balls.

  • Vodka Tonic
    Vodka Tonic Pirms 21 Stundas

    48,000,000 black men were NOT harmed in the making of these balls. =)

  • Vodka Tonic
    Vodka Tonic Pirms 21 Stundas

    I think that's where McDonald's got the idea for their play places!

  • Vikram Up
    Vikram Up Pirms 22 Stundām

    she clearly wanted you to ask her out on a boba date lol

  • michael wards
    michael wards Pirms 22 Stundām

    Think that's a 10th of Donald Trump's quids.

  • Jessie Medina
    Jessie Medina Pirms 23 Stundām

    Nice meme

  • Mehrunes Vlahdia
    Mehrunes Vlahdia Pirms 23 Stundām

    Hmm, wireless solar absorbing balls?

  • Elite Riezz
    Elite Riezz Pirms 23 Stundām +1

    Rasist hey why are they black

  • Robert William
    Robert William Pirms dienas

    Putting gasoline from a boat motor in a water reservoir, not smart.

  • brian bond
    brian bond Pirms dienas

    Algae ?

  • Dark -Shadow
    Dark -Shadow Pirms dienas

    the best think is you can walk on water :D

  • Brandon Simon
    Brandon Simon Pirms dienas

    Sounds like a Kardashian joke

  • Lucas Soares Coutinho
    Lucas Soares Coutinho Pirms dienas

    Thy should shot a horror movie in this place!

  • Through the bulkhead
    Through the bulkhead Pirms dienas

    The seagull at 5:50!

  • Pixellia
    Pixellia Pirms dienas

    UMMM anyone else see the bird get minced by the plane propeller at 5:50 ? lol

  • Mayhem Maniac
    Mayhem Maniac Pirms dienas

    5:50 R.I.P bird

  • Chaim Chait
    Chaim Chait Pirms dienas

    i was wtachnig this video then on min 5:52.... a bird got sucked into the jet engine!

  • 7 -13
    7 -13 Pirms dienas

    What about the birds?

  • cascaradepollo cascaradepollo

    hmmmm looks to me like they are hiding something in the water.............

  • Stephen Grange
    Stephen Grange Pirms dienas

    3 to the dollar.96*3=32 mil.Nice one.

  • Scorponkiller
    Scorponkiller Pirms dienas

    one day there gonna mess up on something and have humans drink poison

  • Iwon
    Iwon Pirms dienas +3

    20 years from now..
    ...sorry la.. those balls actually cause cancer... our bad!

  • Jesse Allen
    Jesse Allen Pirms dienas

    Its like a bad science project gone kinda wrong....

  • D. S.
    D. S. Pirms dienas

    One word: baaaaaaaalls.

  • jack remolado
    jack remolado Pirms dienas

    This is how u throw ur plastic garbage legaly.

  • SK Daily Entertainment
    SK Daily Entertainment Pirms dienas

    it is not proper system i think

  • ShaunieBNaturalista
    ShaunieBNaturalista Pirms dienas +4

    My biggest question is why are they in that boat driving around on drinking water?

  • Jay A.
    Jay A. Pirms dienas

    That bird got fucked up

  • T1971 C1971
    T1971 C1971 Pirms dienas

    Only the Kardashian girls has seen more black balls.

  • koiesbow
    koiesbow Pirms dienas

    Oh, I was gonna guess there was 48 million black guys swimming in that lake. The Bro-Mate kinda confirmed it

  • Byahe Ko
    Byahe Ko Pirms dienas

    Please like and subscribe to my channel. Thanks

  • jadekayak01
    jadekayak01 Pirms dienas

    Because 48 million black men have been castrated

  • Bob Loblaw
    Bob Loblaw Pirms dienas

    How would they make out in a waterspout? How much hotter is it above the balls? is it like being on a black roof? What causes a water spout?

  • Andrew Lambert
    Andrew Lambert Pirms dienas

    So if treated water sitting in the sun creates carcinogens, what about every other drinking water reservoir that doesn't have black balls blocking the sun?

  • Andrew H
    Andrew H Pirms dienas +1

    That is so interesting.
    Fascinating in fact.
    Thanks for explaining this, i really enjoyed it!

  • david sanders
    david sanders Pirms dienas

    You need to study the history ot the DWP (Dept of water and power in Los Angeles, Ca.) What have they done lately?

  • Sam Adams
    Sam Adams Pirms dienas

    At the ball pit: SHELDON COME HERE! ... BAZINGA!!

  • Marc John
    Marc John Pirms dienas

    We ban plastic straws at McDonald’s yet do this?!

  • Dumbass Dummy Vote
    Dumbass Dummy Vote Pirms dienas

    just there

  • Key Beats
    Key Beats Pirms dienas

    theres more balls on a slave ship .

    sub for more crazy comments

  • Steven Jeffrey Reyes Gonzalez

    Anyone saw the bird T_T 5:49

  • Edwin Dometille
    Edwin Dometille Pirms dienas

    96M nuances of Black?

    You must allow me 1 poor joke, after all this time I resisted to the algo :(

  • Frank B
    Frank B Pirms dienas

    What about the pollution from the boat? Boats leak oil and it is floating over drinking water.

    CRAZY HORSE Pirms dienas

    Why not use a boat with an impella???

  • Miqueas Promontorio
    Miqueas Promontorio Pirms dienas

    Because 4/3 Black Pi's matter....and they r cubed

  • Zveos
    Zveos Pirms dienas

    Are we not gonna talk about the bird that died at 6:00 ?

  • Chelsea
    Chelsea Pirms dienas

    Wish I worked for that plastics company.... I'd be *rolling* in it. Also, hats off to the beverage company (I'm guessing Coke or Pepsi) for measuring the water they received (before they used it to make more plastic-filled things...shrug).