Where we get our fresh water - Christiana Z. Peppard
View full lesson: ed.ted.com/lessons/where-we-ge...
Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part series on fresh water, Christiana Z. Peppard breaks the numbers down and discusses who is using it and to what ends.
Lesson by Christiana Z. Peppard, animation by Jeremy Collins.
Пікірлер: 234
Is it just me or does the narrator sound like she is about to cry?
@zekel.2083
9 жыл бұрын
I was about to say that too!
@meh9705
4 жыл бұрын
Yo, I even said that in class.
@kingthebunny8302
4 жыл бұрын
No it’s not just you. I heard that to.
@ominous_stranger
3 жыл бұрын
@@zekel.2083 I was going to say that then I saw the comment, then about to say what you said. 😠
@zekel.2083
3 жыл бұрын
@@ominous_stranger si- six years ago man hahaha
Who ever you are, you can do it!!
@yobbomedia1284
4 жыл бұрын
do what tf
@synergous571
3 жыл бұрын
@@seamless- mine isnt even homework its just part of a project
I wish they'd re-record this with someone who wasn't wavering so much vocally. The info and animation is great though.
@theenlightenedone1283
3 жыл бұрын
Still we should have respect for her
This makes me feel a lot better about using water. I always felt like I was completely destroying the world when I took a shower. I'm not going to go out and use more water now, I just don't feel as bad for using as much as I do.
@duckedup
2 жыл бұрын
Water is something that never goes away.. it transforms, renews and recycles... and always will. We can never kill water. That is a fact.
@rexroyulada6267
Жыл бұрын
Water is recyclable since we live in a biosphere. As long we don't pollute our rivers and skies, our water will always be available to us.
Absolutely brilliant!!!
This is such a helpful video!!!!Thanks so much!!
very much helpful from the point of view of my lesson
Great perspective into the amount of water we have and use. Thanks!
@evanf309
4 жыл бұрын
No
In a lot of areas, ground water is not replenished at the same rate was which it is used, and you see the ground water level go deeper. Even in rainy Vancouver. The wells in Langley see the ground water levels decrease and get contaminated by surface use.
Our geography teacher forced us to watch this s
@davmon2800
4 жыл бұрын
SAME
@rshot3626
3 жыл бұрын
Even me
@orlandolane8
3 жыл бұрын
Same
Lots of places DO use surface water for everything, though. In BC, where I live, we get our everyday tap water from a lake atop a nearby mountain. It basically sustains a city of 12,000 people every day. But we get rain like nobody's business, so it's different.
I'm thirsty now... :(
Love it! Quiz tomorrow :)
Very quick! synopsis of global water consumption- Serves as great into for deeper exploration of water or tangential topics
este mismo material no lo tienen en español?
Thanks for the lesson, it has given me a good idea on how to start my university essay.
Amazing... Thank you Ted...
@tedvinecombe4333
3 жыл бұрын
@Henry D Pleasure.
What about the water in the atmosphere? Does that account towards "surface" water?
latitude and longitude lines cross at 90 degrees, so the shape of the country is distorted, but the areas are more close to real life. this makes it easier to compare countries by scale. its not used much in the west because it makes Africa, Australia and south America look bigger than the US and Europe, which they are.
Nice video, thank you ted ed.
The use of the word "literally" surprised.
I love her voice.
@mxcsothibgqgaxmiaothnhbsdfk
3 жыл бұрын
@Sebastian Hellums u suc
How much goes to watering grass?
((وجعلنا من الماء كل شيء حي ))
Currently taking an environmental science course and the whole thing is about water and how to conserve it. People are actually trying to figure out ways to be able to reuse water. Right now, some ecofriendly buildings actually reuse water for their toilets. Some use rainwater for sewage and whatnot. But they haven't found a way to reuse water for drinking...so my teacher believes...
(from cont.) and uses something similar to Oxygen. We already know organisms that do not use Oxygen, but water is dipolar, so it has a wider range of things that it can dissolve. dipolar means both acidic and basic. Bases and acids are the same dissolving power based on how far from 7 in pH they are. Water has a pH of 7, but can dissolve many, many things.
What about the water in the atmosphere? Is that also surface water?
I have been saving rain water for years for use around the yard,. It's not that much just about 200 gal.when full.I keep my consumption down.
I wonder if fracking uses fresh water or salt water. Since fracking puts water into the ground that can not be recovered so it doesn't seem like a good idea to use fresh water for fracking.
her voice gives me anxiety
@janeaerenga116
9 жыл бұрын
That's your problem
@kerokerobonita
9 жыл бұрын
yes it is
@stawbe
8 жыл бұрын
+Samdara I know exactly what you mean, it makes me feel anxious like the person speaking is constantly upset or about to cry. Liza Weil (Paris Geller from Gilmore Girls) has the same voice and I really struggled with that character lol
@nori_04
8 жыл бұрын
Ikr? like she's on the verge of crying or is about to pee
@bri1049
3 жыл бұрын
Lol
Great short
Wow, very nice. Didn't know that about water.
Thank you!
I heard on NPR that there are some farms in third world countries that actually use tainted water. I'm sure there is a process to filter the water but in the end it is still dirty water. One farmer claimed that he gets more yield by using dirty water than anything else. Especially effective on his bananas. I think its on some farm in south america.
Great video!
In the future could we purify ocean water efficiently?
What about the Sea? You didn't mention it???
0:43 das not how you use literally
How about just "other compounds?"
Salty water would mean that there is a higher amount of solute outside of the plant cells than inside. This, in return, draws water out of the plant through osmosis and dehydrates the plant cells. This is called a hypertonic solution. As an experiment, try to drink salt water for a while. Sure it tastes bad, but what you'll notice is that you increasingly become more and more dehydrated. This is why we don't pour road salt over plants during winter as well.
Didn't think we only had 2.5 % freshwater... that gives me worry XD.
@spinellackseverything9920
8 жыл бұрын
she does sound kinda worried and concerned
@Alec McKinney fences can be use as minerals for crops and trees. It is actually isny bad for your health because feces break dowb by bacteria then the trees use that mineral to grow. feces, dead animals and other dead stuff help crops to grow; that has been going on for million of years
Why does she sound like she's on the verge of bursting into tears?
How?
Why can't we have seawater drying beds to convert seawater into salt and fresh water using the sun?
So... i'm assuming we don't have to worry about fresh water for a while... right...? o~o
@johnspence8141
4 жыл бұрын
why would you think that
What about living beings? Who much water do all the living organisms on Earth hold in their bodies?
The narrator's voice gives me the shivers, not to be rude or anything but she sounds like she's on the verge of crying because she is scared. Does anyone else think that? xd
2:08 why are you using the Mercator projection on a globe?
@souppowell7191
4 жыл бұрын
wut
Using the periodic table, we can discern, and know experimentally, that Silicon acts like Carbon, making the range for Silicon-based life forms wider, and making it very interesting to see what type of liquid at higher temperatures they would use. But, there is more Carbon in the universe, because it takes less time for stars to create it. And so far as we have observed there is no life without water. There needs to be a compound that acts like hydrogen does with those weak bonds (cont.)
not 9.7% missing they went over by .3 % 70+30+.3= 100.3%. i just assumed since surface water is so small they just excluded. But also agree water can be used in more then one event if not consumed such as power and drinking water. This would be hard presentation to make though with water renewal through the water system its hard to really calculate water use and amounts.
IMO, what she said is true. Early forms of life came from and lived in water. So there really is no life (to begin with) without water. Peace. :)
don't cry boo, water isn't gonna hurt you~
طبعاً دائما اريد ان اقول نفس الشئ! بس انت سبقتني :)
That water droplet graph was not to scale at all.
In what way?
Lol right. I remember that little bit from my middle school science teacher.
@souppowell7191
4 жыл бұрын
who ru replying 2
water used to produce electricity is also used to grow crops, for human use and of course in industry. something smells wrong in TedEd land
sorry, i got it confused with the Gall-Peters projection
It would be better of the diagrams are proportional to the percent of the contents. You divide fresh water into 3 parts, but 0.3% should not look as big as 70% .
Why is an animation rendered as an interlaced video? The lines really annoy me.
why the word " vary"? eh?
Because Brawndo has what plants crave! We're scary close to the prediction in the movie "Idiocracy".
why not TEDucation?
I think some water is not totally treated after domestic usage and so recycled as farming water. Then again, domestic water is just a drop in the bucket.
"There's no life without it" untrue. But this is about the importance of water, after all. And it is important. Most life on Earth requires it anyways, so.
why cant we just turn alot of the salt water into fresh water by cleaning it and taking out the salt?
That's why water is BIG business
Talking about porcentages is misleading. The amount of fresh water in the world may seem minimal in the context of oceans, but is a lot more we will ever need.
Not as much as it could. We pollute the water so at some point it gets unuseable :/
That would be atmospheric?
Why can't people use salt water or dirty water for agriculture
Many think when talking about water problems like, what are they talking about? Water forms 97 percent of earth! Forgetting the fact it's not all drinkable water.
I guess you've never heard of desalinization. Methods have been invented but it's very expensive. Some countries use it... and when the fresh water supply gets stressed, more countries will follow suit.
Now I feel scared about what would happen if all fresh water were to be gone...
about 5
the voice sounds like about to cry...
what about clouds..?
@Kira-xt1vh
3 жыл бұрын
Last time I checked you can’t drink clouds
do i have to be the one to add that in the US the grass on our front loans we use for aesthetics only in the #1 consumer of our fresh water. yes world, America may be powerful as hell but most people here aren't that smart, the better of us are working on it but we'll see. kinda like the penny, we still use them despite it costing more to make that its actually worth. aren't we supposed to be teaching facts here?
..aw. .... she is worried that we got less water... please don't cry lady..
Hi
doesn't tell when we won't have enough
Duuude I had no idea what you're talking about. O__O Layman's terms please. Haha. Anyway, I'm not here to argue or something. But I believe that without water (fresh or salt water), we will all die, plants, animals, humans, everything. If other "periodic elements" can be an alternative to drinking water, then that'd be great. :)
Epic
Is there anyone who's watching this video during lockdown? If yes then please like👇.
@spandanhalder9967
4 жыл бұрын
@Leon Detavernier 🤦🏻♂️😂😂
@spandanhalder9967
4 жыл бұрын
@Leon Detavernier I can very well understand your condition. Btw is this a homework that you've to complete within the lockdown?
it seems she is shy or gonna cry
What's with the shaky voice?
Trying to finish the video with a tembling and shaky narrator’s voice, so uncomfortable!
0:43 There's nothing quite as ironic as using the word 'literally' figuratively
It is a very very small amount. It may seem like a lot but it is actually not.
de-salination plants are expensive and take other resources to runt hem.
Ohh, no, yea. I'm talking about outside of Earth's ecosystem. Also it's not arguing it's discussing. :3 Oh uhh that's a bunch of Chemistry stuff. There's some nice videos on chemistry education here on youtube. Like crashcourse and khan academy maybe.
what really happens when you jump in an elevator?
I feel nervous just after watching this
I know water is a compound of H and O. Cant you see I used his own words? (That's why "periodic elements" is in quotation) Try not to meddle with other people's discussions without reading first. Cheers.
in the future i will make my own salt water maker to fresh water
@prakh1250
3 жыл бұрын
I'm planning on doing that for an engineering project lmao
@hlpenguin8278
3 жыл бұрын
@@prakh1250 this was 14 year old me but I am 18 years old and I don't remember sending this message i think its cool that your doing this project, keep up the work 👍
@prakh1250
3 жыл бұрын
@@hlpenguin8278 Thanks! Well it's not really for my OWN engineering purposes, (What I mean by "engineering" is that it's for a school club), but yeah, I am most certainly going to try figuring out a way to solve problems like these.
not all over the world, eh!
oh har had deop in the bucket
Water! :D
only 8%? That makes me feel alot less guilty over wasting water by taking long showers...