Let's turn the high seas into the world's largest nature reserve | Enric Sala

69,867 views ・ 2018-06-28

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: Tianji (Homer) Li
00:13
If you were to jump into any random spot in the ocean,
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如果你随机跳进大海的某个地方,
00:17
you would probably see something like this.
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可能会看到这样一个情景:
00:20
Empty of large animals.
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毫无大型动物的痕迹。
00:23
Because we have taken them out of the water
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因为它们被人类带离大海的速度
00:26
faster than they can reproduce.
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快于它们的繁殖速度。
00:29
Today I want to propose a strategy to save ocean life,
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今天,我想提出一个 拯救海洋生物的策略,
00:33
and the solution has a lot to do with economics.
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这个解决方案和经济学有很大的关系。
00:36
In 1999, a little place called Cabo Pulmo in Mexico
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1999年,墨西哥一个 叫普尔莫角的小地方
00:40
was an underwater desert.
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曾是一片海洋沙漠。
00:42
The fishermen were so upset not having enough fish to catch
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当地渔民曾因无鱼可捕而非常困扰,
00:46
that they did something that no one expected.
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于是他们做了一件令人意想不到的事,
00:49
Instead of spending more time at sea, trying to catch the few fish left,
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比起花更多时间尝试去 捕所剩无几的鱼,
00:53
they stopped fishing completely.
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渔民们决定彻底停止捕鱼。
00:57
They created a national park in the sea.
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他们在海里建起了一个国家公园,
01:00
A no-take marine reserve.
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一个禁止捕钓的海洋保护区。
01:04
When we returned, 10 years later, this is what we saw.
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10年后我们回到那里, 见到的是这样一番景象——
01:09
What had been an underwater barren
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曾经的水下荒地
01:13
was now a kaleidoscope of life and color.
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如今成了一个五彩缤纷, 富有生机的地方。
01:17
We saw it back to pristine in only 10 years.
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我们在仅仅10年间就见证了 它回复到原始海洋状态,
01:20
Including the return of the large predators,
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其中还包括一些大型捕食者的归来,
01:22
like the groupers, the sharks, the jacks.
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比如石斑鱼、鲨鱼、马鲹鱼。
01:26
And those visionary fishermen
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而那些极富远见的渔民们
01:29
are making much more money now, from tourism.
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如今也从旅游业中赚到了更多的钱。
01:34
Now, when we can align economic needs with conservation,
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当我们将经济需求和 生态保护结合起来时,
01:37
miracles can happen.
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奇迹就会发生。
01:40
And we have seen similar recoveries all over the world.
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我们在世界各地 都见证了相似的生态复苏。
01:44
I spent 20 years studying human impacts in the ocean.
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我花了20年研究人类 对于海洋的(负面)影响,
01:50
But when I saw firsthand the regeneration of places like Cabo Pulmo,
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而当亲眼见证了普尔莫角 以及其他海域的重生时,
01:57
that gave me hope.
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我心中又燃起了希望。
01:59
So I decided to quit my job as a university professor
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因此,我辞去了大学教授的工作,
02:03
to dedicate my life to save more ocean places like this.
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决定用我的余生来拯救 更多像这样的海域。
02:09
In the last 10 years, our team at National Geographic Pristine Seas
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在过去10年间 ,我和 国家地理原始海洋考察团队一起,
02:13
has explored, surveyed and documented
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探索、调查、并记录了
02:16
some of the wildest places left in the ocean
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一些海洋中最宽阔的海域,
02:19
and worked with governments to protect them.
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并与政府合作保护这些海域。
02:22
These are all now protected, covering a total area half the size of Canada.
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这些都是已经被保护的海域, 总面积达到加拿大领土的一半之多。
02:27
(Applause)
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(掌声)
02:32
These places are the Yellowstones and the Serengetis of the sea.
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它们就像是海中的黄石公园 和塞伦盖蒂平原。
02:39
These are places where you jump in the water
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在这片海域,只要你跃入水中,
02:42
and are immediately surrounded by sharks.
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马上就会被鲨鱼环绕。
02:45
(Laughter)
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(笑声)
02:46
And this is good,
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这是一件好事,
02:48
because the sharks are a good indicator of the health of the ecosystem.
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因为鲨鱼的存在表示这片海域的 生态系统非常健康。
02:52
These places are time machines
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这些地方就像时光机一样,
02:55
that take us to the ocean of 1,000 years ago.
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可以带我们回溯 一千年前的海洋(状况)。
02:58
But they also show us what the future ocean could be like.
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它们也向我们展示了 未来海洋可能的样子,
03:03
Because the ocean has extraordinary regenerative power,
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因为海洋具有超凡的再生能力,
03:07
we have seen great recovery in just a few years.
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我们见证过海洋在 短短数年中的伟大重生。
03:10
We just need to protect many more places at risk
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我们只需去保护更多处于危险中的海域,
03:14
so they can become wild and full of life again.
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让它们重获生机。
03:18
But today, only two percent of the ocean
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但如今,只有百分之二的海洋
被全面保护,不受捕鱼和其他活动侵扰。
03:22
is fully protected from fishing and other activities.
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03:26
And that's not enough.
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这还远远不够。
03:28
Studies suggest that we need at least 30 percent of the ocean under protection
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研究表明,我们至少 需要30%的受保护海域
03:33
not just to save marine life, but to save us, too.
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才能适当地保护海洋生物, 同时也保护人类自己。
03:36
Because the ocean gives us more than half of the oxygen we breathe, food,
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因为大海为人类提供了 一半以上的氧气和食物,
03:41
it absorbs much of the carbon pollution
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并且吸收了许多人类在大气中
03:44
that we throw in the atmosphere.
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造成的碳污染。
03:46
We need a healthy ocean to survive.
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为了生存,我们需要一片健康的海洋。
03:50
Now, is there a way to accelerate ocean protection?
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是否有什么方法可以 加速海洋保护的进程呢?
03:55
I think so.
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我认为答案是肯定的。
03:57
And it involves us looking at the high seas.
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这就涉及到公海了。
04:01
Now, what are the high seas?
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什么是公海呢?
04:02
Now coastal countries have authority over 200 nautical miles from shore.
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当下,沿海国家有权管理从其 海岸线起200海里以内的海域,
04:09
Everything beyond those areas are called the high seas.
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除去这些部分的所有海域都称为公海,
04:13
In dark blue on this map.
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即图中深蓝色的部分。
04:15
No country owns the high seas,
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公海不属于任何一个国家,
04:17
no country is responsible for them,
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也不属于任何一个国家的管辖范围,
04:20
but they all are, so it's a little like the Wild West.
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但其实每个国家都应对其负责, 它有点像美国的西部荒地。
04:23
And there are two main types of fishing in the high seas.
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公海上的捕钓主要分为两类,
04:26
At the bottom and near the surface.
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海底捕钓和海面捕钓。
04:29
Bottom trawling is the most destructive practice in the world.
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在海底使用拖网捕鱼是世界上 最具毁灭性的一种做法。
04:35
Super trawlers, the largest fishing vessels in the ocean,
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超大型拖网渔船是海洋上 最大的捕鱼船只,
04:38
have nets so large that they can hold a dozen 747 jets.
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它们所携带的网非常大, 可以网住12架波音747型飞机。
04:46
These huge nets destroy everything in their paths --
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这些大网可以摧毁其所达之处的一切_
04:51
including deep corals that grow on sea mounds,
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其中包括海丘上可能已经生长了
04:54
which can be thousands of years old.
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几千年的深海珊瑚。
04:57
And fishing near the surface targets mostly species
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而海面上的捕鱼活动目标多半是那些
05:00
that migrate between the high seas and country's waters,
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在公海和各国拥有的 海域之间移居的生物,
05:03
like tuna and sharks.
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比如金枪鱼和鲨鱼。
05:05
And many of these species are threatened because of too much fishing
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许多这样的物种都因为过度捕捞
05:09
and bad management.
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和糟糕的管理而受到了威胁。
那么,在公海上捕鱼的都是些什么人呢?
05:11
Now, who fishes in the high seas?
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05:14
Until now, it was difficult to know exactly,
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到目前为止,我们很难给出确定的答案。
05:17
because countries have been very secretive
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因为许多国家的长距离捕鱼
05:19
about the long-distance fishing.
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都是隐秘地进行的。
05:22
But now, satellite technology allows us to track individual boats.
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但如今,我们可以通过卫星技术 来追踪单个船只,
05:28
This is a game-changer.
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这是一个很大的突破。
05:31
And this is the first time
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今天是我们是一次
05:32
we are presenting the data that you are going to see.
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向大家展示这些数据。
05:37
I'm going to show you the tracks of two boats
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接下来,我会演示 我们所追踪的两艘船
05:39
over the course of a year,
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在一年之内的活动。
05:42
using a satellite automated identification system.
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这是通过卫星自动识别系统实现的。
05:46
This is a long-liner, fishing around the southern coast of Africa.
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这是一艘延绳钓船, 它在非洲南岸沿岸实施捕钓。
05:51
After a few months fishing there, the boat goes to Japan to resupply,
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在那里捕捞几个月之后, 这艘船回到日本补充物资,
05:56
and shortly after, here it is, fishing around Madagascar.
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很快,他们又来到 马达加斯加附近捕鱼。
06:00
This is a Russian trawler fishing, probably, for cod,
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另外一艘是俄罗斯的拖网渔船, 可能是为了捕捞鳕鱼,
06:05
in Russian waters,
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它从俄罗斯的海域
06:06
and then across the high seas of the north Atlantic.
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进入北大西洋的公海。
06:10
Thanks to Global Fishing Watch,
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多亏了"全球渔业观测站"的存在,
我们得以追踪3600多艘船只。
06:13
we have been able to track over 3,600 boats
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06:17
from more than 20 countries, fishing in the high seas.
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它们从20多个不同国家的 海域进入公海捕鱼。
06:21
They use satellite positioning and machine-learning technology
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"全球渔业观测站"通过 卫星定位和机器学习技术
06:25
to automatically identify if a boat is just sailing or fishing,
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来自动辨别那些船只 是在航行,还是在捕捞,
06:30
which are the white spots here.
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即图中这些白点。
06:32
So with an international group of colleagues,
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有了这些国际同事的帮助,
06:34
we decided to investigate
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我们决定开始调查
06:36
not only who fishes in the high seas, but who benefits from it.
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是谁在公海捕鱼, 更重要的是,谁从中获利。
06:42
My colleague, Juan Mayorga,
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我的同事胡安 · 迈奥尔加
06:43
at the University of California, Santa Barbara,
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来自加州大学圣芭芭拉分校,
06:45
has produced detailed maps of fishing effort,
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他研制出了描述 捕捞力量的详细示意图。
06:48
which means how much time and fuel is spent fishing
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捕捞力量指在海洋中 任意区域中捕鱼时
06:51
in every pixel in the ocean.
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所花费的时间和所使用的燃料。
06:53
We have a map for every country.
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对每一个国家,我们都有 一份这样的示意图。
06:56
China, Taiwan, Japan, Korea and Spain alone
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其中单是中国,中国台湾, 日本,韩国和西班牙的捕鱼量
07:00
account for almost 80 percent of the fishing in the high seas.
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就占了公海总捕鱼量的近80%。
07:04
When we put all of the countries together,
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当我们将所有国家的数据 整合在一起时,
07:07
this is what we get.
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得到了如下结果:
07:09
Because we know the identity of every boat in the database,
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我们从数据库中可以 得知每一艘船的身份,
07:15
we know its size, its tonnage, the power of its engines,
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包括船的尺寸,载重量,发动机功率,
07:19
how many crew are on board.
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以及船员的人数。
07:22
With this information, we can calculate fuel costs, labor costs, etc.
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有了这些信息,我们可以计算出 燃料成本,人工成本等数据。
07:27
So for the first time,
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因此,这是我们第一次
07:29
we have been able to map the costs of fishing in the high seas.
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有能力将公海的 捕鱼成本标注在地图上。
07:34
The darker the red, the higher the costs.
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红色越深意味着成本越高。
07:37
Thanks to our colleagues at the University of British Columbia,
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多亏了我们在英属哥伦比亚 大学同事的帮助,
07:40
we know how much every country is actually fishing.
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我们得知了每个国家的实际捕鱼数量,
07:44
And we know the price of the fish as it comes off the vessel.
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再加上鱼的贩卖价格是已知的,
07:48
Combined with the data on effort,
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将这些数据整合在一起,
07:50
we have been able to map the revenue of fishing the high seas.
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我们就能够将公海渔业的 收入标注在地图上。
07:54
The darker the blue, the higher the revenue.
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蓝色越深意味着收入越高,
07:57
We have costs, and we have revenue.
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现在成本已知,收入也已知。
08:00
So for the first time,
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因此我们首次
08:02
we have been able to map the profitability of fishing in the high seas.
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能够将公海渔业的利益率标注在地图上。
08:08
Now I'm going to show you a map.
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现在我会向你们展示一幅地图,
08:10
Red colors mean we are losing money by fishing in that part of the ocean.
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红色代表那片海域的渔业正在亏本,
08:16
Blue colors mean it's profitable.
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蓝色代表正在盈利。
08:19
Here it is.
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请看,
08:21
It seems mostly profitable.
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看上去大部分都是盈利的,
08:23
But there are two more factors we have to take into account.
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然而我们还要考虑另外两个因素:
08:28
First, recent investigations reveal
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第一,最近的研究揭露了
08:32
the use of forced labor, or slave labor,
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被强迫的劳动力或者说苦役
08:35
in high seas fishing.
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在公海捕鱼中是很常见的。
08:37
Companies use it to cut costs, to generate profits.
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苦役被用来削减成本以创造收益。
08:42
And second, every year, governments subsidize high seas fishing
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第二,政府每年都会资助公海捕鱼业,
08:47
with more than four billion dollars.
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金额高达四十多亿美元。
08:51
Let's go back to the map of profits.
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让我们回过头来看盈利图。
08:53
If we assume fair wages,
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如果我们假定工资是合理的,
08:55
which means not slave labor,
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也就是说不雇佣苦役,
08:57
and we remove the subsidies from our calculation,
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同时从计算中去除政府补贴,
09:02
the map turns into this.
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这幅地图就变成了这样。
09:05
Fishing is truly profitable in only half of the high seas fishing grounds.
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公海渔业真正盈利的地方 仅占公海捕鱼范围的一半。
09:12
In fact, on aggregate,
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事实上总体来看,
09:15
subsidies are four times larger than the profits.
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政府补贴比收益要多四倍。
09:20
So we have five countries doing most of the fishing in the high seas
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简单来讲,五个国家和行政区 从事着大部分的公海捕鱼,
09:24
and the economics are dependent on huge government subsidies,
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而且在经济上依靠着政府的大额补贴。
09:27
and for some countries, on human rights violations.
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有些国家还必须靠 侵犯人权来从事公海捕鱼。
09:32
What this economic analysis reveals,
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这项经济分析表明:
09:34
is that practically the entire high seas fishing proposition is misguided.
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实际上整个公海渔业的 议题已经被误导了。
09:38
What sane government would subsidize an industry
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有哪个正常的政府会去补贴
09:42
anchored in exploitation and fundamentally destructive?
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一个发展停滞不前并且有 极大破坏性的产业呢?
09:46
And not so profitable, anyway.
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更何况这个产业还不赚钱。
09:49
So, why don't we close all of the high seas to fishing?
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那么,我们为什么不彻底 停止在公海上捕鱼呢?
09:56
Let's create a giant high seas reserve, two-thirds of the ocean.
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让我们建立个巨大的公海保护区, 占整个海洋面积的2/3。
10:03
A modeling study from --
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一个模型研究——
10:05
(Applause)
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(掌声)
10:09
A modeling study from colleagues at UC Santa Barbara,
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我在加州大学圣芭芭拉分校的 同事的模型研究显示:
10:12
suggests that such reserve would help migratory species like tuna
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这样的保护区将会帮助 那些像金枪鱼一样的移居动物
10:15
recover in the high seas.
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在公海中重获生机。
10:17
And part of that increased abundance would spill over into the countries' waters,
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公海中的部分物种 也会流入各国所属的海域,
10:21
helping to replenish them.
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补充那里的生物种类。
10:23
That would also increase the catch in these waters,
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同时捕捞量也会增长,
10:26
and so would the profits,
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利润也会随之增长,
10:28
because the cost of fishing would be lowered.
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这是因为捕鱼成本降低了。
10:30
And the ecological benefits would be huge,
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而生态方面的效益则是巨大的,
10:34
because these species of large predators, like tuna and sharks,
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因为像金枪鱼和鲨鱼 这样的大型捕食者
10:37
are key to the health of the entire ecosystem.
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是事关整个生态系统健康的关键。
10:41
Therefore, protecting the high seas
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因此通过保护公海,
10:44
would have ecological, economic and social benefits.
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我们将重获海洋的生态效益, 经济效益以及社会效益。
10:48
But the truth is that most fishing companies
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但事实上,大部分捕捞公司
10:50
don't care about the environment.
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并不关心环境问题。
10:52
But they would make more money by not fishing in the high seas.
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但如果停止在公海捕鱼, 他们会赚更多的钱,
10:56
And this would not affect our ability to feed our growing population,
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而且即使这样做,也足够 满足日益增长人口的需求。
11:01
because the high seas provide only five percent of the global marine catch,
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因为公海捕捞的鱼 仅占全球海洋捕捞的5%,
11:08
because the high seas are not as productive as near-shore waters.
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因为公海并不像近海水域那样多产。
11:12
And most of the catch of the high seas is sold as upscale food items,
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大部分公海捕捞的鱼 都被做成了高端食品贩卖,
11:17
like tuna sashimi or shark fin soup.
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比如金枪鱼生鱼片或鱼翅汤。
11:21
The high seas catch does not contribute to global food security.
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这说明公海捕捞并不能为 全球食品保障出一份力。
11:28
So how are we going to do it?
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那么我们该如何做呢?
11:29
How are we going to protect the high seas?
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我们要怎样保护公海呢?
此时此刻,联合国的谈判人员正在
11:32
As we speak, negotiators at the United Nations
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11:34
are beginning discussions on a new agreement to do just that.
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开始就达成新的协议进行磋商。
11:38
But this cannot happen behind closed doors.
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但这一些不能暗中进行。
11:42
This is our greatest opportunity.
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这是一个最为重要的机遇,
11:44
And we all should ensure
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所有人都应当确保
11:46
that our countries will support the protection of the high seas
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我们的国家会支持公海保护,
11:51
and get rid of subsidies to industrial fishing.
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并且停止对公海渔业的补贴。
11:55
In 2016, 24 countries and the European Union
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2016年,24个国家和欧盟
12:00
agreed to protect the Ross Sea,
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就共同保护罗斯海达成了一致。
12:04
the wildest places in Antarctica,
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罗斯海是南极洲最广阔的一片海域,
12:06
full of wildlife like killer whales, leopard seals, penguins.
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那里有很多野生动物, 如虎鲸,海豹,企鹅。
12:10
And this included fishing nations, like China, Japan, Spain, Russia.
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这些国家中也包括了渔业国家, 比如中国,日本,西班牙,俄罗斯。
12:16
But they decided that protecting such a unique environment
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他们认为保护这样一个稀有的环境,
12:21
would be worth more than exploiting it for relatively little benefit.
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相比通过对其进行开发 来获取有限的利益是利大于弊的。
12:25
And this is exactly the type of cooperation
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这种形式的合作
12:29
and willingness to set aside differences
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以及将差异搁置一旁的意愿,
12:31
that we are going to need.
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正是我们所需要的。
12:32
We can do it again.
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我们可以再来一次。
12:35
If 20 years from now,
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如果在20年后,
12:37
our children were to jump into any random spot in the ocean,
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我们的孩子随机跳入大海的某个地方,
12:43
what would they see?
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他们会看到什么?
12:45
A barren landscape, like much of our seas today,
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是像现在我们所见到一片荒芜,
12:50
or an abundance of life, our legacy to the future?
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还是我们留给他们的 一片生机勃勃的景象呢?
12:53
Thank you very much.
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谢谢大家。
(掌声)
12:55
(Applause)
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谢谢。
12:58
Thank you.
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12:59
(Applause)
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(掌声)
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