Why Are 96,000,000 Black Balls on This Texan Ribs Are Bigger Than 2 weeks ago   12:07

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 http://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.

Comments 44257 Comments

John Smith
Or you could of done it the natural way with plants...ya know how nature intended
Stone Foot
why was that done?
Facepalm, black absorbs heat. Even if they don't leach chemicals, they are raising the ambient temperature.
Michael Wooda
They were used in the movie ..the abyss..for to filming during the day.
Hans Byenkya
God bless those 192,000,000 black men🙍🏾‍♂️
Hans Byenkya
There may just be 192,000,000 black man in there😎
Ms A
He's seen 96 million balls
Straw Hat Luffy
Pewd’s sub count.
Michele Moneywell
Don't know why this popped into my recommendations, but it is interesting. (Oh, maybe for Oroville Dam videos I watch. Spillway may be unusable, tallest dam at 892 foot water level, just 8' from overflow-- could be a catastrophe waiting to happen. Imagine a big lake 900' deep breaching a dam...)
Ben Cassidy
When did Dick Cheney get into the water industry
kids on xbox:
Tim L
I was thinking of making a joke about not seeing more white girls at this reservoir but I'm afraid to read the replies.
former retro
Dana Sauder
there's nothing but Sinister motives here, I don't believe this BS for a minute. 4 crime families in California you're ruining that state. cabal Pelosi Brown
bushy gamer651
It's really rare to see 96 million of anything
Humans:are we a joke to you?!
bushy gamer651
I would like to jump in that lake
Anyone else just me.. ok
Sam Clayton
I think they are there because Mr.Beast filmed a video
So they've replaced one carcinogen, bromate, with another toxic chemical, HDPE plastic, which will degrade and seep into the drinking water. Great plan!
Just Music
damn thats stupid...
Not worth the views
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Texan Ribs Are Bigger Than Why Are 96,000,000 Black Balls on This 2 weeks ago   03:40

Terry Black's Barbecue in Austin, Texas is known for serving giant beef ribs that are larger than your face. Each day, the restaurant cooks nearly 130 briskets "low and slow" for hours. In addition to the massive beef ribs, you can get an assortment of side dishes all made by hand.

See more from Terry Black's BBQ: http://terryblacksbbq.com/

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