我们的海洋（2024）

洋流继续围绕北冰洋前进
The great current continues its journey around the Arctic Ocean,
其中一些向外流动的洋流
where some of the outbound current
通过加拿大群岛分流出去
peels off through the Canadian archipelago.
成为西北水道
The Northwest Passage.
这是一条传说中的海上航线
A fabled sea route...
因被冰堵塞而闻名
notoriously clogged by ice.
风和洋流使冰破碎并堆积
Wind and current fracture and pile up the ice,
形成冰峰
creating frozen pinnacles
厚达18米
up to 60 feet thick.
令多数船只无法通行
Making it impenetrable to most ships.
但有一位北极居民 有其方法可以穿越这条冰封水道
But one Arctic resident has their own way of navigating this ice-clogged waterway.
一条白鲸和它的宝宝…
A beluga whale and her baby...
长途跋涉 前往一个秘密地点
...on a long voyage to a secret spot.
白鲸也被称为海里的金丝雀
These white whales are known as the canaries of the sea.
它们使用复杂的语言
They use a complex language,
帮助幼鲸在学习冰迷宫导航时
helping calves to stay in close contact with their mothers
与母亲保持紧密联络
as they learn to navigate the ice maze.
这些精通冰层的鲸鱼 能够在海冰的裂缝中穿梭
These ice-savvy whales can swim through cracks in the sea ice.
多数鲸鱼来到这里都会举步维艰
Most would struggle to travel here.
但白鲸没有背鳍
But belugas have no dorsal fin,
这是一种适应性特征 让它们能轻松地在冰下滑过
an adaptation which allows them to slide just under the ice.
小鲸鱼能够屏住呼吸超过八分钟
The calves can hold their breath for over eight minutes,
在前进过程中通过冰孔呼吸
sipping breaths through ice holes as they go.
最后全家都成功通过
At last, the whole family makes it through,
抵达了几乎没有冰的海岸
arriving at an almost ice-free coast.
它们经历数百公里旅行 才找到这个水湾
This inlet is what they've traveled hundreds of miles to find.
成年鲸鱼从小就来这里
The adults have been coming here since they were calves.
今天家族最新的成员 正在学习这里的特别之处
And today, the newest members of the pod are learning why it's so special.
它们跟随父母进入仅1.8米深的水域
They follow their parents into just six feet of water.
夏天 融化的河流汇入水湾
In summer, melting rivers feed the inlet,
使这里的温度比海洋高出11摄氏度
making it a balmy 20 degrees Fahrenheit warmer than the ocean.
这里简直是白鲸的健康水疗中心
It's a beluga health spa.
幼鲸正在首次体验这些设施
And the youngsters are checking out the facilities for the first time.
爸爸去做身体磨砂
Dad goes for a body scrub,
姑姑们则在尝试水中有氧运动
while the aunties try some aqua aerobics.
如果会找的话
And, if you know where to look,
就有特别的办法 去清洗那些难以触及的地方
there are special tricks for scrubbing those hard-to-reach places.
妈妈向小白鲸展示
Mom shows her baby beluga
如何将较大的石头用作搓澡的丝瓜络
how to use the larger rocks like a body loofah.
在海上待了几个月 正需要好好搓个澡
Just what she needs after months at sea.
但这个家庭 并没有度假村的独家使用权
But the family doesn't have exclusive use of this wellness retreat.
其他白鲸群抵达
Other beluga pods arrive.
它们都是来这里去除变黄的死皮
They're all here to exfoliate their dead, yellowing skin
并摆脱寄生虫
and shed parasites.
一直擦到呈现闪亮的白色为止
They scrub until it's gleaming white.
连幼鲸都了解了自我护理的重要性
Even the babies learn the importance of self-care.
高峰时期 多达2000头白鲸聚集于此
享受海湾的健康护理
At peak times, up to 2,000 gather here to enjoy the inlet's health benefits,
形成地球上最热闹的白鲸泳池派对
creating one of the liveliest beluga pool parties on Earth.
它们的欢声笑语…
Their pleasure is audible,
在水下数公里外都能听到
and can be heard below the water for miles around.
但白鲸的声音正面临一种新的威胁
But beluga voices are being drowned out by a new threat.
噪音污染
Noise pollution.
北冰洋正在发生变化
从一个安静而冰冷的天堂
The Arctic Ocean is changing from a quiet, icy haven
变为繁忙的航运高速通道
to a busy shipping highway.
如今穿过西北水道的船只数量 是20年前的五倍
Five times as many vessels are now cutting through the Northwest Passage
than they were two decades ago.
交通量的增加对白鲸来说是坏消息
Increased traffic is bad news for belugas...
因为它们对声音高度依赖
...who rely heavily on their world of sound.
而且适应变化的速度很慢
And they're slow to adapt to change.
它们古老的迁徙路线 如今与新航路直接发生冲突
Their ancient migration paths are now in direct conflict
with the new shipping routes...
增加了与船只碰撞的可能性
...increasing chances of ship strikes.
在北极各地 各国争相主张对这最后边疆的权利
Across the Arctic, nations are racing
to stake their claim to this final frontier,
每年都进行新的工业勘探 以满足世界的需求
with new industrial exploration happening every year to meet the world's demands.
一些世界上最有价值的未开♥发♥资源
Some of the world's most valuable untapped resources
据信位于北极深处
are thought to lie in the Arctic deep.
科技
比如这台遥控航行器
Technology, like this remotely operated vehicle...
让我们能够探索前所未有的深度
is allowing us to explore previously uncharted depths.
靠近北极 海冰之下4公里
Close to the North Pole, two-and-a-half miles beneath the sea ice,
有一个原始热源
there's a primal source of heat.
一座深海火山
A deep-sea volcano.
这是人类发现的最北端的火山
The furthest north ever found.
火山口覆盖着贵金属
Its vents are gilded in precious metals.
据估有数以百万吨♥计的矿物
It's estimated that millions of tons of minerals,
以及900亿桶石油
and 90 billion barrels of oil,
埋藏在北极深处
lie in the Arctic deep.
随着这片正在融化的海洋 变得更容易进入
As this melting ocean becomes easier to access,
采矿
mineral extraction,
甚至深海捕鱼
and even deep-sea fishing,
成为可能
are becoming possible.
北极的深海宝藏仍在被不断发现
The Arctic's deep-sea treasures are still being discovered.
但它们已经面临巨大危机
But they're already in great peril.
现在我们要作出选择
Now, we have a choice.
开♥发♥还是保护 这些令人难以置信的新发现
To exploit or protect these incredible new discoveries.
在短短三年多的时间里
In just over three years,
全球洋流完成了穿越北冰洋的旅程
the global ocean current
completes its journey through the Arctic Ocean,
形成一个完整的循环
coming full circle.
初夏时节
In early summer,
斯瓦尔巴东北部的海岸 通常会被海冰覆盖
the shores of northeastern Svalbard would normally be covered in sea ice.
但气候危机已将海冰变为开阔水域
But the climate crisis has turned ice into open water.
这只熊妈妈 带着一岁大的小熊在海滩上拾荒
This mom is taking her one-year-old cubs beachcombing.
采集食物一直是熊的技能之一
Foraging has always been part of the bears' skill set.
但没有海冰可供捕猎 它们如今必须愈发依靠这一技能
But without sea ice to hunt on, they must now increasingly rely on it.
熊妈妈小时候
When she was their age,
只需最多忍♥耐为期两月的无冰夏季
she would only have had to endure up to two summer months without ice.
如今时间会加倍 甚至更久
Now, it can be twice that or more.
这意味着长♥期♥饥荒
Meaning long periods of famine.
所以它必须教导小熊 如何发挥聪明才智
So, she must teach her cubs how to be resourceful,
寻找残羹冷炙
searching for scraps.
弄清哪些安全可食用
Working out what's safe to eat
哪些不能碰
and what isn't.
即便成年北极熊 也难以辨别
It's confusing, even for an adult.
洋流将塑料和污染物 从邻近海洋带到北极
The current carries plastics and pollutants to the Arctic
from neighboring oceans.
被海岸线上的垃圾缠住 可能会导致死亡
Getting tangled in the shoreline litter can be a death sentence.
但这次侥幸逃脱
But not this time.
其它威胁无法避免
Other threats are inescapable.
比如工业污染产生的化学物质
Like chemicals from industrial pollution.
在北极熊体内 这些化学物质会累积
In polar bears, these chemicals accumulate
并会影响它们的繁殖能力
and can affect their ability to reproduce.
面对逆境
In the face of adversity,
这位熊妈妈和其他北极居民
this mom and the rest of the Arctic's residents
为了生存拼尽全力
are doing their best to survive.
北冰洋不再是曾经的冰雪堡垒
The Arctic Ocean is no longer the icy stronghold it once was.
成群结队的新来者 随着退去的海冰向北进发
Hordes of new arrivals are following the retreating ice north.
虎鲸
Orca.
还有座头鲸
And humpback whales.
为自己创造机会
Creating opportunities for themselves
也给当地居民带来竞争
and competition for residents.
其中还有…
And, among them...
蓝鲸
a blue whale.
地球上存在过的…
The biggest animal
最大的动物
to have ever lived on Earth.
将近30米长
Nearly 100 feet long
重量超过150吨♥
and weighing over 150 tons.
它跟随着 在温暖洋流中茁壮生长的虾群
She has made this long-distance voyage
完成了这段长途航行
following krill that are flourishing in the warming current.
而且它并不孤单
And she's not alone.
这是第一次拍摄到 大西洋蓝鲸带着幼鲸
It's the first time Atlantic blue whales have been filmed