How China is (and isn't) fighting pollution and climate change | Angel Hsu

177,806 views ・ 2018-09-19

TED


请双击下面的英文字幕来播放视频。

翻译人员: jacks peng 校对人员: Wei Wu
00:13
When is seeing not believing?
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什么时候眼见不实?
00:17
A couple years ago, my friend sent me this photo from Ürümqi,
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几年前,我朋友给我发了这张 来自乌鲁木齐的照片,
00:20
which is the capital of Xinjiang province in northwest China.
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它是中国西北部新疆省的省会。
00:24
On this particular day, she couldn't believe her eyes.
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在这个特定的日子里, 她无法相信自己的眼睛。
00:28
Checking the quality of the air outside using this app on her iPad,
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用她iPad上这个手机应用 查看外面的空气质量,
00:33
the numbers were telling her the air quality was good,
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数字告诉她空气质量优质,
00:36
one on a scale of 500.
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在500的范围内质量为1。
00:38
But when she looked outside, she saw something much different.
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但当她看外面,她看到了 一些很不一样的东西。
00:42
Yes, those are buildings in the background.
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是的,这些是背景的建筑。
00:44
(Laughter)
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(笑声)
00:47
But the data were simply not telling the truth
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但数据只是没有反映
00:50
of what people were seeing and breathing,
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人们看到和呼吸到的真相。
00:52
and it's because they were failing to measure PM2.5,
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这是因为中国没能监测PM2.5,
00:56
or fine particulate pollution.
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或细颗粒污染。
00:58
When PM2.5 levels went off the charts in 2012,
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当2012年PM2.5水平爆表时,
01:02
or "crazy bad," as the US Embassy once described it in a tweet,
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或者“糟糕透了”,正如美国大使馆 在一条推特上所说,
01:06
Chinese denizens took to social media
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中国公民使用社交媒体
01:08
and they started to question why it was that they were seeing this disconnect
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开始质疑为什么官方空气质量统计数据
01:12
between official air quality statistics
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与他们自己看到和呼吸的
01:14
and what they were seeing and breathing for themselves.
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存在这么大的脱节。
01:18
Now, this questioning has led
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这个质疑引发了
01:20
to an environmental awakening of sorts in China,
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中国环境意识的觉醒,
01:24
forcing China's government to tackle its pollution problems.
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迫使中国政府解决污染问题。
01:28
Now China has the opportunity to become a global environmental leader.
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现在中国有机会成为全球环境领袖。
01:34
But the picture that I'll paint for you today
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但今天我要给你们描绘的画面
01:36
is one that's mixed.
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要更加混合。
01:38
There are some signs that are very promising,
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有一些迹象非常令人鼓舞,
01:41
and there are other trends that are more troubling
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但也有一些令人不安的趋势
01:43
that warrant closer attention.
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需要更值得关注。
01:45
But now let's go back to the story at hand.
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现在让我们回到手头的故事。
01:48
I started to witness the beginnings of China's green evolution
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我开始见证中国绿色革命的开端,
01:51
when I was a PhD student conducting fieldwork in China in 2011.
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当2011年我还是一名博士生, 在中国进行实地考察时。
01:56
I traveled all across the country seeking answers to the question
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我全国到处行走寻找回答
01:59
that I often got myself from the skeptical outsider:
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外部质疑者的怀疑问题:
02:03
What, you mean China is doing something on the environment?
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什么,你说中国有在做环境相关的事情?
02:06
They have environmental policies?
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他们有环保政策?
02:07
What policies?
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什么政策?
02:09
At that time, PM2.5 data was considered too politically sensitive
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当时,PM2.5被认为政治太敏感,
02:14
and so the government was keeping it secret,
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于是政府秘而不宣,
02:16
but citizens were becoming aware of its harmful human health effects,
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但公众开始逐渐意识到它的健康危害,
02:21
and they were demanding greater transparency
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他们要求政府
02:23
on the part of the government.
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提高透明度。
02:25
I actually started to see some of this growing evolution and awareness myself
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事实上,我开始看到这些不断增长 的演变和意识
02:29
cropping up all over China.
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在中国各地不断冒出。
02:31
Department stores, for example, started to market these air purifiers
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例如,百货商店开始销售空气净化器
02:35
that could filter out harmful PM2.5.
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用来过滤有害的PM2.5。
02:39
Citizens were also adopting PM2.5 as the title of musical festivals.
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公民也用PM2.5作为音乐节的名字。
02:44
(Laughter)
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(笑声)
02:46
And then I went to a golf course in Shenzhen, which is in southern China,
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后来我去了深圳的一个高尔夫球场, 它在中国南方,
02:50
and you can see from this banner, they're advertising a retreat from PM2.5.
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你可以从这条横幅上看到, 他们在宣传这里几乎没有PM2.5。
02:55
Golf sub-par, but don't breathe sub-par air.
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高尔夫球场低于平均水平, 不要呼吸低标准的空气。
02:59
And then Shanghai's Environmental Protection Bureau
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然后是上海的环境保护局
03:01
decided to create a mascot named after the air quality index
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决定创建一个以空气质量指数命名的吉祥物
03:06
to better communicate the air quality data to its people.
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来更好地跟民众沟通空气质量指数。
03:10
I call her AQI Girl,
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我叫她为AQI女孩(空气质量指数女孩),
03:12
and her expression and hair color changes depending on the quality of air outside.
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她的表情和头发的颜色会随着 外面空气的质量而变化。
03:17
Five years later and she's still the mostly smiling face
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五年后,上海空气质量在大部分情况下
03:21
of Shanghai's air quality.
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都是微笑面孔。
03:23
And then in 2015,
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然后在2015年,
03:25
former CCTV reporter Chai Jing
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中央电视台前记者柴静
03:27
created this documentary called "Under the Dome."
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制作了纪录片《穹顶之下》。
03:30
It would be likened to Rachel Carson's "Silent Spring."
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这就好比蕾切尔·卡逊的《寂静的春天》。
03:34
And much like Rachel Carson
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很像蕾切尔·卡逊
03:35
brought to attention the fact that pesticides were harming human health,
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唤起人们关注杀虫剂正在危害人类健康,
03:39
"Under the Dome" stamped into the popular consciousness
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《穹顶之下》让人们意识到
03:43
that air pollution was leading to one million premature deaths
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空气污染每年光在中国就导致100万人
03:48
every year in China alone.
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过早死亡。
03:51
This video garnered
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这个视频
03:52
more than a hundred million views in a single weekend
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在政府干预前的一个周末内
03:55
before China's government,
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播放量就超过了1亿,
03:57
fearing that it might incite some type of social unrest,
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政府担心这会引起社会动荡,
04:00
pulled it from the internet.
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从互联网下架了此视频。
04:02
But the damage had already been done.
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但损害已经造成。
04:05
Public outcry over air pollution
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公众对空气污染的愤怒
04:07
galvanized China's government,
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刺激了中国政府,
04:09
perhaps in an act of self-preservation,
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或许是出于自我保护,
04:11
to think big and decisively about how it could tackle
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从大的和决定性的角度考虑
04:14
the root of its air pollution
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如何解决空气污染的根源
04:16
and many of its other environmental problems:
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以及它的很多其他环境问题:
04:18
its energy system.
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它的能源体系。
04:20
For you see, in China,
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如你所见,中国,
04:22
about two thirds of its electricity comes from coal.
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大概2/3的电力来自煤炭。
04:26
China has more coal-fired power plants than any other country in the world,
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中国拥有世界上最多的燃煤发电厂,
04:31
about 40 percent of the global total,
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占全球总量的40%,
04:34
and it's because of this fact that China's government
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正是因为这个事实,中国政府
04:38
has decided since 2014 to wage a war on coal,
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决定2014年开始对煤炭宣战,
04:42
shutting down small coal mines,
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关闭小煤矿,
04:44
setting limits on coal consumption,
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限制煤炭消费,
04:47
even canceling an Australia's worth of coal-fired power plants.
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甚至关闭了相当于澳大利亚 的煤炭发电厂。
04:53
They've also been making enormous investments
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他们也在诸如水力发电, 风能和太阳能
04:55
when it comes to clean and renewable energy,
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那样的清洁和可再生能源上
04:57
like hydropower, wind and solar,
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做了大举投入,
05:00
and the pace and the scale of this transformation
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这种转变的速度和规模
05:03
has been absolutely mind-blowing.
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绝对令人震惊。
05:05
Let me give you a couple of statistics to show you what I mean.
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让我给你们一组统计数据阐明我的意思。
05:08
China leads the world when it comes to hydropower,
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在水力发电方面, 中国以全球1/3的容量
05:11
with a third of total capacity.
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领先全球。
05:13
There's enough for every Chinese citizen
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仅水力发电一年
05:16
to power two homes in a single year from hydropower alone.
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就足够每个中国公民为两户人家 提供电力。
05:20
You may have heard of the Three Gorges Dam,
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你们可能听过三峡大坝,
05:23
pictured here,
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图片在这,
05:24
which is the largest power station in the world,
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是世界上最大的发电站,
05:26
and it's powered by water.
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它是由水驱动的。
05:28
In terms of wind power,
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风电方面,
05:29
China has a third of the global capacity.
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中国占全球装机容量的1/3.
05:32
This makes it the number one leader by far.
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这它成为遥遥领先的第一名。
05:35
When we look at solar, China's also leading.
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当我们看太阳能时, 中国也处于领先地位。
05:38
In fact, they crushed their 2020 target
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事实上,他们实现了2020年
05:42
of installing 105 gigawatts of solar power.
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安装105千兆瓦太阳能的目标。
05:45
This is after the government already revised upwards
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在此之前,中国政府
05:48
several times its solar energy target
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已在2009年至2015年间数次上调
05:51
between 2009 and 2015.
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太阳能目标。
05:54
Last year, in seven months alone,
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去年,仅仅在7个月内,
05:57
China was able to install a whopping 35 gigawatts of solar power.
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中国太阳能装机容量达到了 惊人的35千兆瓦。
06:02
This is more than half of what the US has combined in total
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这一数字超过了美国总和的一半,
06:05
and China did this in just seven months alone.
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而且中国在7个月的时间内就做到了。
06:09
We can verify this remarkable growth in solar power from space,
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我们可以从太空中验证 太阳能的显著增长,
06:13
like the startup SpaceKnow has done in this slide.
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如初创公司天空之眼(SpaceKnow) 的这张图表上所示。
06:16
By 2020, China is on track to generate Germany's entire electricity consumption
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到2020年,中国有望只通过风能和太阳能
06:22
from just wind and solar power alone.
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就能实现德国的全部电力消费。
06:25
It's pretty darn remarkable.
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这是相当惊人的。
06:28
And we see some evidence now
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我们现在可以看到一些证据,
06:30
that China's efforts on clean energy
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中国在清洁能源上的努力
06:32
is actually having an effect,
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确实在产生成效,
06:34
not just on air pollution reduction,
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不仅对减少空气污染,
06:36
but also on global climate change,
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但也对全球气候变化,
06:38
where China has the world's largest carbon footprint.
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中国是世界上碳排放量最大的国家。
06:42
If we look at some of the data, we can see that China's coal consumption
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如果我们看数据,可以看到中国的煤炭消费
06:46
may have already reached a peak as early as 2013.
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可能早在2013年就达到了峰值。
06:50
This is a major reason why China's government announced
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这是中国政府之所以宣布
06:53
that actually they've already achieved their 2020 carbon reduction pledge
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他们已经提前实现2020年减排承诺
06:58
ahead of schedule.
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的主要原因。
07:00
This reduction in coal consumption
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煤炭消费的减少
07:02
is also directly driving improvements in air quality
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也直接改善了全国各地的
07:05
across the country,
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空气质量,
07:06
as I've shown here in blue.
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就如我在这里展现的蓝色部分。
07:09
In most major Chinese cities,
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在多数主要中国城市,
07:10
air pollution has fallen by as much as 30 percent.
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空气污染下降多达30%。
07:14
And this reduction in air pollution is actually leading people
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空气污染的减少也确实让中国人们
07:17
to live longer lives in China,
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寿命增加,
07:19
on average two and a half years more than they would have in 2013.
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平均比2013年多两年半。
07:25
In yellow, we can see the cities that have experienced
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黄色这些,是我们可以看到的
07:28
the greatest improvements in air quality.
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空气质量改善最大的城市。
07:31
But of course, as I mentioned at the beginning of this talk,
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但当然,就如我在这个演讲开头 提到的那样,
07:34
we have to temper some of this optimism
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我们必须用适当的谨慎
07:36
with a healthy dose of caution,
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来缓和这种乐观情绪,
07:38
and that's largely because the data are still being determined.
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这很大程度上是因为数据还未最终确认。
07:43
At the end of last year,
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去年年底,
07:45
after roughly three years of pretty steady global carbon emissions,
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在全球碳排放量稳定增长大约三年之后,
07:49
scientific projections suggest
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科学预测表明,
07:51
that global emissions may be on the rise again
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全球排放量可能再次上升
07:54
and that could be due to increases in China's fossil fuel consumptions,
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这可能是由于中国化石燃料消费的增加,
07:58
so they may not have reached that peak that I showed earlier.
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所以它们可能没有达到 我之前展示的峰值。
08:02
But of course, the statistics and the data are still murky
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但当然,统计数据和数据仍然模糊不清,
08:05
and that's because China regularly revises its coal statistics after the fact.
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这是因为中国在事后定期修正 煤炭统计数据。
08:11
Actually, it's funny,
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实际上,这很有趣,
08:12
since I've been here I've been having a debate on Twitter
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自从我来到这里,我就在推特上和其他
08:15
with other climate modelers,
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气候模型专家辩论,
08:16
trying to figure out whether China's carbon emissions
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想要搞清楚中国的碳排放
08:19
have gone up, gone down or whether they're staying relatively stable.
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是上升,下降还是保持相对稳定。
08:24
And of course, China is still a rapidly developing country.
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当然,中国仍然是快速发展中国家。
08:28
It's still experimenting with a range of policies,
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它仍然在试验各种政策,
08:30
like dockless bike sharing,
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比如无桩共享单车,
08:32
which has been hailed as a possible sustainable transport solution.
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这被认为是一种可行的可持续交通解决方案。
08:36
But then we have images of this bicycle graveyard
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但后来我们有这个自行车墓地的图片
08:40
that tell a more cautionary tale.
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说明一个更值得警惕的故事。
08:42
Sometimes, solutions can move too fast
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有些时候,解决方案变化太快
08:45
and outpace demand.
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并超出需求。
08:47
And of course, coal is still king in China,
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当然,煤炭仍然是中国的王者,
08:51
at least for now.
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至少目前而言。
08:53
So why should we care about what China is doing on the environment?
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那么,我们为什么要关心中国 在环境上的所作所为呢?
08:57
Well, what China does at home on the environment
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中国在国内环境问题上的作为可能会对
09:00
can have global implications for the rest of us.
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我们其他国家产生全球性的影响。
09:02
To borrow a line from Chai Jing,
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引用柴静的一句台词,
09:04
we're all under the same dome,
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我们都生活在同一个穹顶下,
09:06
and air pollution that originates in China
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来自中国的空间污染
09:09
can travel beyond its borders
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可以跨越国家扩散
09:11
and affect populations as far away as those in North America.
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影响远至北美的人民。
09:16
China's not only exporting air pollution,
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中国不仅出口空间污染,
09:18
but they're also exporting aid, infrastructure, technology abroad.
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他们也在向国外输出援助, 基础设施和技术。
09:24
President Xi Jinping in 2013 announced the One Belt, One Road Initiative,
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2013年习近平主席宣布一带一路倡议,
09:29
a massive, one-trillion-US-dollar infrastructure investment project
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一个规模庞大,价值1万亿美元, 覆盖超过60个其他国家
09:34
in more than 60 other countries.
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的基础设施建设项目。
09:36
And historically, when we've seen
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历史上,当我们看
09:38
that China has made these infrastructure investments abroad,
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中国在海外进行基础设施投资时,
09:41
they haven't always been clean.
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它们并不总是清洁的。
09:43
The Global Environment Institute, a Chinese civil society group,
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全球环境研究所,一个中国公民社会组织,
09:47
found that in the last 15 years,
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发现在过去15年,
09:49
China has invested in more than 240 coal-fired power plants
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中国已经在68个国家投资超过
09:53
in more than 68 countries
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240个燃煤发电厂,
09:55
affiliated with the One Belt, One Road Initiative.
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这与一路一带倡议有关。
09:58
That's more than a quarter of China's own domestic coal-fired capacity
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超过中国国内燃煤发电能力的1/4
10:02
that is exported abroad.
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被出口至海外。
10:04
So we can see that even though China is cleaning up at home,
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于是我们可以看到尽管中国国内正在改善,
10:08
it's exporting some of that pollution
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它在出口部分的污染
10:11
to other countries,
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到其他国家,
10:12
and greenhouse gas emissions simply don't have a passport.
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而且温室气体排放根本不用护照。
10:16
So when we're trying to evaluate this question
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所以当我们试图评估中国
10:18
of whether or not China is actually leading,
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是否真正领先这个问题时,
10:20
we can see it's still very much an open debate.
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我们可以看到仍然有太多的公开争议。
10:24
But time is running out.
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但时间所剩无几。
10:25
I've studied the climate models, and the outlook is not good.
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我研究过气候模型,前景并不乐观。
10:29
We still have a gap between current policies
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如果我们要避免危险的环境变化,
10:32
and what needs to happen if we want to avoid dangerous climate change.
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现行政策和需要做的事情之间 仍有很大的鸿沟。
10:37
Leadership is what we desperately need,
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领导力是我们迫切需要的,
10:39
but it's not coming from the US, for example.
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但举例来说,美国是不能指望了。
10:42
The US administration last June announced its intent
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美国政府去年6月宣布
10:45
to withdraw from the Paris Climate Agreement,
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有意退出《巴黎气候协定》,
10:48
so now people are looking towards China to fill that leadership void.
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因此现在人们希望中国来填补 这一领导真空。
10:52
So China is very much in the driver's seat
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所以,中国很大程度上掌握着主动权
10:54
determining our global environmental future.
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决定我们全球环境的未来。
10:57
What they do on carbon trading,
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他们在碳交易,
10:59
on clean energy, on air pollution,
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清洁能源,空气污染的作为,
11:03
we can learn many lessons.
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我们可以学到很多东西。
11:05
One of those lessons is that clean energy is not just good for the environment,
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其中一点是清洁能源不仅对环境好,
11:10
it can save lives by reducing air pollution.
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它可以通过减少空气污染拯救生命。
11:13
It's also good for the economy.
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它也对经济有益。
11:15
We can see that last year,
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我们可以看到去年,
11:17
China was responsible for 30 percent of the global growth
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中国占了全球清洁能源就业增长
11:20
in green jobs.
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中的30%。
11:21
The US? Only six.
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美国呢?只有6%。
11:24
So the picture that I just painted for you
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所以我刚才给你们绘的图,
11:27
hopefully seems much different
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那些模糊的,雾霾的空气质量统计数据
11:29
from those murky, foggy air quality statistics
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到更加中国清洁能源更加清洁的图片
11:32
to a much clearer picture of China's clean energy.
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希望看起来不同。
11:36
And even though China is headed in the right direction,
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尽管中国正朝着正确的方向前进,
11:39
we know that there's still a very long road ahead.
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我们知道前面仍有很长的路要走。
11:42
So let me ask you once more: Is seeing believing?
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所以让我再问你一次:眼见为实吗?
11:45
Can we trust the data and the statistics
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我们能够相信数据和统计
11:47
that show that China's air quality is coming down
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所显示的中国空气质量指数在改善
11:51
and that its war on coal is actually having an effect?
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以及对煤炭的战争取得成效了吗?
11:55
Well, let's take a look at some of the latest satellite images
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让我们来看看中国太阳能装机的
11:58
of China's solar power installations.
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最新的卫星图片。
12:02
I want you to look very closely at this image.
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我想要你们认真看看这张照片。
12:06
Can you see?
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看到了吗?
12:08
The proof may just be in the pandas.
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证据就在熊猫上。
12:11
Thank you so much.
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谢谢。
12:12
(Applause)
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(鼓掌)
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