3 thoughtful ways to conserve water Lana Mazahreh

In March 2017,

the mayor of Cape Town officially
declared Cape Town a local disaster,

as it had less than four months
left of usable water.

Residents were restricted to 100 liters
of water per person, per day.

But what does that really mean?

With 100 liters of water per day,

you can take a five-minute shower,

wash your face twice

and probably flush the toilet
about five times.

You still didn’t brush your teeth,

you didn’t do laundry,

and you definitely
didn’t water your plants.

You, unfortunately, didn’t wash your hands
after those five toilet flushes.

And you didn’t even take a sip of water.

The mayor described this as that it means

a new relationship with water.

Today, seven months later,

I can share two things
about my second home with you.

First: Cape Town hasn’t run out
of water just yet.

But as of September 3rd,

the hundred-liter limit
dropped to 87 liters.

The mayor defined the city’s new normal
as one of permanent drought.

Second:

what’s happening in Cape Town
is pretty much coming to many other cities

and countries in the world.

According to the Food and Agriculture
Organization of the United Nations,

excluding countries
that we don’t have data for,

less than five percent
of the world’s population

is living in a country that has more water
today than it did 20 years ago.

Everyone else is living in a country
that has less water today.

And nearly one out of three
are living in a country

that is facing a water crisis.

I grew up in Jordan,

a water-poor country that has experienced
absolute water scarcity since 1973.

And still, in 2017,

only 10 countries in the world
have less water than Jordan.

So dealing with a lack of water
is quite ingrained in my soul.

As soon as I was old enough
to learn how to write my name,

I also learned that I need
to conserve water.

My parents would constantly remind
my siblings and I to close the tap

when we brushed our teeth.

We used to fill balloons with flour
instead of water when we played.

It’s just as much fun, though.

(Laughter)

And a few years ago,

when my friends and I were dared
to do the Ice Bucket Challenge,

we did that with sand.

(Laughter)

And you might think that,
you know, that’s easy,

sand is not ice cold.

I promise you, sand goes everywhere,

and it took ages to get rid of it.

But what perhaps I didn’t realize

as I played with flour
balloons as a child,

and as I poured sand
on my head as an adult,

is that some of the techniques
that seem second nature to me

and to others who live in dry countries

might help us all address
what is fast becoming a global crisis.

I wish to share three lessons today,

three lessons from water-poor countries

and how they survived and even thrived
despite their water crisis.

Lesson one:

tell people how much water
they really have.

In order to solve a problem,

we need to acknowledge that we have one.

And when it comes to water,

people can easily turn a blind eye,

pretending that since water
is coming out of the tap now,

everything will be fine forever.

But some smart, drought-affected countries

have adopted simple, innovative measures

to make sure their citizens,
their communities and their companies

know just how dry their countries are.

When I was in Cape Town earlier this year,

I saw this electronic billboard
on the freeway,

indicating how much water
the city had left.

This is an idea they may well have
borrowed from Australia

when it faced one of the worst droughts
of the country’s history

from 1997 to 2009.

Water levels in Melbourne
dropped to a very low capacity

of almost 26 percent.

But the city didn’t yell at people.

It didn’t plead with them
not to use water.

They used electronic billboards
to flash available levels of water

to all citizens across the city.

They were honestly telling people
how much water they really have,

and letting them take
responsibility for themselves.

By the end of the drought,
this created such a sense of urgency

as well as a sense of community.

Nearly one out of three citizens
in Melbourne had invested

in installing rainwater holding tanks
for their own households.

Actions that citizens took didn’t stop
at installing those tanks.

With help from the city,

they were able to do something
even more impactful.

Taking me to lesson two:

empower people to save water.

Melbourne wanted people
to spend less water in their homes.

And one way to do that is to spend
less time in the shower.

However, interviews revealed
that some people, women in particular,

weren’t keen on saving water that way.

Some of them honestly said,

“The shower is not just to clean up.

It’s my sanctuary.

It’s a space I go to relax,
not just clean up.”

So the city started offering
water-efficient showerheads for free.

And then, now some people complained
that the showerheads looked ugly

or didn’t suit their bathrooms.

So what I like to call
“The Showerhead Team”

developed a small water-flow regulator

that can be fitted
into existing showerheads.

And although showerhead beauty
doesn’t matter much to me,

I loved how the team didn’t give up

and instead came up with
a simple, unique solution

to empower people to save water.

Within a span of four years,

more than 460,000
showerheads were replaced.

When the small regulator was introduced,

more than 100,000 orders
of that were done.

Melbourne succeeded in reducing
the water demands per capita

by 50 percent.

In the United Arab Emirates,

the second-most water-scarce
country in the world,

officials designed what they called
the “Business Heroes Toolkit” in 2010.

The aim was to motivate
and empower businesses

to reduce water and energy consumption.

The toolkit practically taught companies

how to measure their existing
water-consumption levels

and consisted of tips
to help them reduce those levels.

And it worked.

Hundreds of organizations
downloaded the toolkit.

And several of them joined

what they called
the “Corporate Heroes Network,”

where companies can voluntarily
take on a challenge

to reduce their water-consumption
levels to preset targets

within a period of one year.

Companies which completed the challenge
saved on average 35 percent of water.

And one company, for example,

implemented as many water-saving tips
as they could in their office space.

They replaced their toilet-flushing
techniques, taps, showerheads –

you name it.

If it saved water, they replaced it,

eventually reducing their employees'
water consumption by half.

Empowering individuals and companies
to save water is so critical,

yet not sufficient.

Countries need to look
beyond the status quo

and implement country-level actions

to save water.

Taking me to lesson three:

look below the surface.

Water savings can come
from unexpected places.

Singapore is the eighth most
water-scarce country in the world.

It depends on imported water
for almost 60 percent of its water needs.

It’s also a very small island.

As such, it needs to make use
of as much space as possible

to catch rainfall.

So in 2008,

they built the Marina Barrage.

It’s the first-ever urban water reservoir
built in the middle of the city-state.

It’s the largest
water catchment in the country,

almost one-sixth the size of Singapore.

What’s so amazing about the Marina Barrage

is that it has been built to make
the maximum use of its large size

and its unexpected yet important location.

It brings three valuable
benefits to the country:

it has boosted Singapore’s water
supply by 10 percent;

it protects low areas
around it from floods

because of its connection to the sea;

and, as you can see,

it acts as a beautiful
lifestyle attraction,

hosting several events,

from art exhibitions to music festivals,

attracting joggers, bikers, tourists
all around that area.

Now, not all initiatives
need to be stunning

or even visible.

My first home, Jordan, realized
that agriculture is consuming

the majority of its fresh water.

They really wanted to encourage farmers

to focus on growing
low water-intensive crops.

To achieve that,

the local agriculture is increasing
its focus on date palms and grapevines.

Those two are much more tolerant
to drought conditions

than many other fruits and vegetables,

and at the same time,

they are considered high-value crops,
both locally and internationally.

Locals in Namibia,

one of the most arid countries
in Southern Africa,

have been drinking
recycled water since 1968.

Now, you may tell me
many countries recycle water.

I would say yes.

But very few use it for drinking purposes,

mostly because people
don’t like the thought

of water that was in their toilets
going to their taps.

But Namibia could not afford
to think that way.

They looked below the surface
to save water.

They are now a great example

of how, when countries purify waste water
to drinking standards,

they can ease their water shortages,

and in Namibia’s case,

provide drinking water for more
than 300,000 citizens in its capital city.

As more countries which used
to be more water rich

are becoming water scarce,

I say we don’t need to reinvent the wheel.

If we just look at what
water-poor countries have done,

the solutions are out there.

Now it’s really just up to all of us

to take action.

Thank you.

(Applause)

2017 年 3 月

,开普敦市长正式
宣布开普敦为当地灾难,

因为它
的可用水量还剩不到四个月。

居民每天每人只能喝 100
升水。

但这究竟意味着什么?

每天用 100 升水,

你可以冲个澡五分钟,

洗两次脸

,大概冲
五次马桶。

你仍然没有刷牙,

你没有洗衣服

,你肯定
没有给你的植物浇水。

不幸的是,你
在那五次冲马桶后没有洗手。

你甚至没有喝一口水。

市长形容这意味着

与水的新关系。

七个月后的今天,

我可以和大家分享
关于我第二个家的两件事。

第一:开普敦还没有
用完水。

但截至 9 月 3 日

,百升限制
降至 87 升。

市长将城市的新常态定义
为永久性干旱之一。

第二:

开普敦正在发生的事情
几乎正在世界上许多其他城市

和国家发生。

根据联合国粮食及农业组织的数据

不包括
我们没有数据的国家,

只有不到 5%
的世界

人口生活在一个比 20 年前拥有更多水资源的国家
。 今天

其他人都生活在一个
水资源较少的国家。

近三分之一的
人生活在

一个面临水资源危机的国家。

我在约旦长大,这

是一个水资源匮乏的国家,
自 1973 年以来就经历了绝对的水资源短缺。

但在 2017 年,

世界上只有 10 个国家的
水资源比约旦少。

因此,处理缺水问题
在我的灵魂中根深蒂固。

当我长大
到学会写自己的名字的时候,

我也知道我
需要节约用水。 当我们刷牙时,

我的父母会不断提醒
我的兄弟姐妹和我关闭水龙头

我们过去
玩的时候用面粉代替水填充气球。

不过,这也很有趣。

(笑声

) 几年前,

当我和我的朋友们敢于
参加冰桶挑战赛时,

我们用沙子做到了。

(笑声

) 你可能会认为,
你知道,这很容易,

沙子不是冰冷的。

我向你保证,沙子到处都是,

而且需要很长时间才能摆脱它。

但是

当我小时候玩面粉
气球时

,当我成年后把沙子倒
在头上时,我可能

没有意识到,有些技巧
对我

和其他生活在干旱国家的人来说似乎是第二天性

可能会帮助我们所有人解决
正在迅速成为全球危机的问题。

今天我想分享三个教训,

来自缺水国家的三个教训

,以及它们如何在水危机中幸存下来甚至繁荣发展

第一课:

告诉人们
他们真正有多少水。

为了解决一个问题,

我们需要承认我们有一个问题。

而对于水,

人们很容易视而不见,

假装既然水龙头里有水
,那

一切都会好起来的。

但一些聪明的、受干旱影响的国家

已经采取了简单的创新措施

,以确保其公民
、社区和公司

知道他们的国家有多干燥。

今年早些时候我在开普敦的时候,

我在高速公路上看到了这个电子广告牌
,上面

显示
着这座城市还剩多少水。

当澳大利亚面临 1997 年至 2009 年该国历史上最严重的干旱之一时,他们很可能从澳大利亚借鉴了这个想法

墨尔本的水位
下降到

几乎 26% 的极低容量。

但这座城市并没有对人们大喊大叫。

它没有恳求他们
不要用水。

他们使用电子广告牌

向全市所有市民展示可用水位。

他们诚实地告诉人们
他们真正有多少水,

并让他们
为自己负责。

到干旱结束时,
这创造

了一种紧迫感和社区感。 墨尔本

近三分之一的
市民为自己的家庭

安装了雨水储存箱

公民采取的行动并没有
停止安装这些坦克。

在城市的帮助下,

他们能够做一些
更有影响力的事情。

带我上第二课:

授权人们节约用水。

墨尔本希望
人们在家中减少用水。

一种方法是
减少淋浴时间。

然而,采访显示
,有些人,尤其是女性

,并不热衷于以这种方式节水。

他们中的一些人诚实地说:

“淋浴不仅仅是为了打扫卫生。

它是我的避难所。

这是我放松的空间,
而不仅仅是打扫卫生。”

因此,该市开始
免费提供节水淋浴喷头。

然后,现在有些人
抱怨淋浴喷头看起来很丑

或不适合他们的浴室。

因此,我喜欢称之为
“淋浴喷头团队”的公司

开发了一种小型水流调节

器,可以安装
到现有的淋浴喷头中。

虽然淋浴喷头的美感
对我来说并不重要,但

我喜欢团队没有放弃

,而是想出了
一个简单、独特的解决

方案,让人们能够节约用水。

在四年的时间里,

超过 460,000 个
淋浴喷头被更换。

引入小型监管机构时,已完成

超过 100,000 份
订单。

墨尔本成功地将
人均用水需求减少

了 50%。

阿拉伯联合酋长国是世界

上第二缺水的
国家,

官员们在 2010 年设计了他们所谓
的“商业英雄工具包”。

其目的是激励
和授权

企业减少水和能源消耗。

该工具包实际上教公司

如何测量其现有
的用水量水平,

并包含
帮助他们降低这些水平的技巧。

它奏效了。

数百个组织
下载了该工具包。

他们中的一些人加入

了他们所谓
的“企业英雄网络”

,公司可以自愿
接受

挑战,在一年内将用水量
降低到预设目标

完成挑战的公司
平均节省了 35% 的水。

例如,一家公司在其办公空间中

实施了尽可能多的节水技巧

他们更换了马桶冲水
技术、水龙头、淋浴喷头——随便

你说。

如果它节省了水,他们就更换它,

最终将员工的
用水量减少了一半。

授权个人和
公司节约用水非常重要,

但还不够。

各国需要
超越现状

,实施国家层面的

节水行动。

带我上第三课:

看表面之下。

节水可能
来自意想不到的地方。

新加坡
是世界上第八大缺水国家。


近 60% 的用水需求依赖进口水。

这也是一个非常小的岛屿。

因此,它需要
利用尽可能多的空间

来捕捉降雨。

所以在 2008 年,

他们建造了滨海堤坝。

这是第一个
建在城邦中部的城市水库。

它是该国最大的
集水区,

几乎是新加坡面积的六分之一。

Marina Barrage 的惊人之处

在于,它的建造旨在
最大限度地利用其大尺寸

和出人意料但重要的位置。

它给国家带来了三个宝贵的
好处:

它使新加坡的
供水增加了 10%; 由于

它与大海相连,它可以保护
周围的低地免受洪水侵袭

而且,正如您所看到的,

它是一个美丽的
生活方式景点,

举办了

从艺术展览到音乐节的多项活动

,吸引了该地区的慢跑者、骑自行车者和游客

现在,并非所有举措都
需要令人惊叹

甚至可见。

我的第一个家,约旦,
意识到农业消耗

了大部分淡水。

他们真的想鼓励

农民专注于种植
低耗水作物。

为了实现这一目标

,当地农业正在增加
对枣椰树和葡萄藤的关注。

与许多其他水果和蔬菜相比,这两种水果对干旱条件的耐受性要强得多

,同时,

它们
在当地和国际上都被认为是高价值作物。

纳米比亚

是南部非洲最干旱的国家之一,当地人从 1968

就开始饮用
再生水。

现在,你可能会告诉我,
许多国家都在循环使用水。

我会说是的。

但很少有人将它用于饮用目的,

主要是因为人们
不喜欢

厕所里的水
去水龙头的想法。

但纳米比亚不能
这样想。

他们在水面下寻找
以节约用水。

它们现在是一个很好的例子

,说明当国家将废水净化
至饮用水标准时,

它们可以缓解水资源短缺问题

,在纳米比亚的案例中,


首都的 300,000 多名公民提供饮用水。

随着更多过去
水资源丰富

的国家变得缺水,

我说我们不需要重新发明轮子。

如果我们只看看
缺水国家做了什么

,解决方案就在那里。

现在真的要靠我们

所有人采取行动了。

谢谢你。

(掌声)