Where we get our fresh water - Christiana Z. Peppard

431,664 views ・ 2013-02-12

TED-Ed


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00:00
Transcriber: Andrea McDonough Reviewer: Bedirhan Cinar
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Translator: Mehmet Sıddık Dilek Reviewer: Daban Q Jaff
00:14
At birth, our bodies are roughly 75% water.
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Dema jidayikbûnê bedena me %75 av e.
00:18
We remain mostly water for the rest of our lives.
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Di pey re jî, dê wisa bimîne.
00:20
We cannot survive even a week without fresh water.
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Bê ava paqij em nikarin tenê hefteyeke jî bijîn.
00:24
There's no life without it
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Bê av jiyan nabê;
00:26
for ecosystems,
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00:26
societies,
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ji bo ekosîstemê,
civakê
00:27
and individuals.
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û mirovan.
00:29
So, how much usable water is there on Earth?
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Vêca çiqas ava paqij li dinyayê heye?
00:32
Most of the water on Earth is ocean,
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Piranî ava dinyayê di deryayan de ye,
00:34
a salty 97.5%, to be precise,
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ev ava şor %97.5 pêk tîne,
00:37
and the remaining 2.5% is fresh water.
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û ya mayî %2.5 ava paqij ê.
00:41
That little sliver of liquid sustains human life on Earth,
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bi vê ava hindik jiyan didome,
00:44
it literally holds up civilizations.
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şaristani li ser piya dimîne.
00:46
2.5% is a small proportion to be sure,
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%2.5 bi rastî jî hindik e,
00:50
and even that is broken down into smaller parts:
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lê ev jî belav dibe:
00:52
surface water,
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ava li ser erdê,
00:53
water in ice caps and polar regions,
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ava li heremên qeşayî
00:56
and ground water.
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û ava bin erdê.
00:58
First, surface water.
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Yekem, ava ser erdê.
00:59
All the liquid water above ground is surface water
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Ava li ser erdê
li gorî hemû avê; dilopek e.
01:02
and it is a tiny blip of an amount.
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01:04
0.3% of all fresh water is surface water.
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%0.3 ji ava paqij li ser erdê ye.
01:07
It may seem counterintuitive,
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Eceb e; lê ev ji çend çavkaniyên
01:09
but it accounts for little streams all over the planet.
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li ser dinyayê pêk tên.
01:12
All rivers, including the Nile, the Jordan, and the Mississippi,
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Hemû çem wek Nile, Jordan û Mississippi,
01:15
and lakes, large to small,
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hemû golên mezin wek
01:17
like Victoria, the Great Lakes, and Baikal.
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Victoria, Great Lakes û Baykal.
01:20
Second, ice caps and polar regions
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Duyem ava hermên cemserî qeşa ye,
01:22
freeze up to 70% of the planet's fresh water.
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û %70 ava paqij ev e.
01:25
This water is significant,
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Ev av giîng e
01:26
but it isn't available for human use in a regular way.
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lê mirov nikarin vê avê bi kar bînin.
01:31
Finally, nearly 30% of all water on Earth is ground water.
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A dawiyê %30 ava paqij, bin erdê de ye.
01:35
As the name suggests, that's water in the ground.
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Wek navê xwe di bin erdê de ye.
01:37
It can rest still and deep in huge caverns,
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Di şikeftên kur de digere û
01:40
or it can snuggle in the little crevices of rock and pebble.
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di navbera zinaran de diherike.
01:43
The upshot - thank goodness for ground water!
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Baş e ku ava bin erdê heye.
01:46
It's invisible to us,
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Ew xuya nake,
01:47
but it is much more plentiful than surface water.
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lê ji ava ser erdê gelekî zêdetir e.
01:49
It is much more reliable
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Ew behtir ewle ye
01:50
and easier to obtain than frozen water.
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û ji ava qeşayê hêsantir tê bikaranîn.
01:53
Without ground water, our societies would be parched.
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Bê ava bin erdê civak namînin.
01:56
So, how are we using that water?
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Vêca em çawa avê bi kar tînin?
01:58
As a result of industrialization and population growth,
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Ji ber pişesazîbûnê û zêdebûna nifusê,
02:02
demand for fresh water skyrocketed in the last century.
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di sedsala dawi de pewistiya bi ava paqij pir zêde bû.
02:05
Where is all that water going?
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Evqas av diçe ku derê?
02:06
First, we have to remember
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Divê werê îra me
02:08
that fresh water is a global concern,
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ava paqij endîşeyeke gerdunî ye,
02:09
but it is always local.
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lê heremî ye jî.
02:11
Context matters.
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02:12
The Sahara is not Seattle.
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...
Sahra û Seattle ne yek in.
02:15
Still, some general information can help us
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Dîsa jî bi zanyariyên giştî
02:17
get a handle on major trends.
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em ê mijareke girîng fem bikin.
02:19
Who consumes the most fresh water?
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Herî zêde kî ava paqij xerç dikî?
02:21
And, what sectors consume the most fresh water?
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Û zêdetir ji bo çî tê bikaranîn?
02:24
First, who.
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Yekem, k?
02:25
Well, the United States consumes the most water
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Devleta herî zêde ku avê xerc dike
02:27
per capita of any country in the entire world,
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Devletên Yekbûyî yên Amerîkayê ye,
02:30
followed by parts of Europe
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duyem Ewrûpa ye,
02:31
and large industrializing nations like China.
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û duv re Çîn tê.
02:34
But, this doesn't tell us what water is being used for.
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Lê ev nabêje; ji bo çi av tê bikaranîn.
02:38
So let's look at it another way.
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Hade em lê binêrin.
02:39
If we ask what kinds of uses water is going towards,
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Ku em binêrin bo çi av tê bikaranîn
02:42
we see a different picture.
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weneyekî cuda heye.
02:43
Agriculture accounts for roughly 70% of global fresh water consumption.
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Çandinî %70 ava paqij xer dike.
02:48
Again, remember the numbers vary by region,
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Lİ gor hereman bigihure jî,
02:50
but still, it's a staggering amount.
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ev pir zêde ye.
02:53
And, this makes a certain kind of sense:
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Ev tê wateya;
02:54
we need to eat,
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divê em bixwin,
02:55
we need water to grow food;
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ji bo xwarinê av divê;
02:56
the bigger the population,
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nifus zêde dibe
02:58
the more food we need;
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behtir xwarin divê;
02:59
and, the wealthier we get,
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em behtir baş dibin
03:01
the more meat we eat,
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behtir em dixwun,
03:03
and the more water is required to produce our food.
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ji bo behtir xwarinê behtir av divê.
03:05
Furthermore, 22% of all fresh water worldwide
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A din jî %22 ava dinyayê
03:08
goes to industrial uses.
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ji bo pişesaziyê tê bikaranîn.
03:10
This includes the production of electricity,
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Ji bo çêkirina elektrîkê,
03:12
the extraction of fossil fuels,
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ji bo derxistina petrolê,
03:14
and the manufacturing of all manner of goods,
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ji bo çêkirina hemû wek
03:17
from microchips,
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03:17
to paper,
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mikroçîp
kaxez
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to blimps.
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û balonan.
03:19
70% to agriculture,
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%70 bo çandinê,
03:21
22% to industrial uses,
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%22 ji bo pişesaziyê,
03:23
what's left?
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çiqas ma?
03:25
8%
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%8
03:27
All those domestic uses -
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Ev jî ji bo hemû
03:28
cooking,
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xwarinê,
03:29
cleaning,
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03:29
bathing,
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paqijîyê
serşuştinê
03:30
drinking
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û vexwarinê ye.
03:31
- it's a drop in the bucket of overall water use.
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Li gorî hemû avê dilopek e.
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