完 美 星 球
我们生活在一个充满暴力气氛的世界 We live in a world with a violent atmosphere.
雨云形成, Rain clouds form,
强风把淡水带到全球各地 and powerful winds carry their fresh water around the globe.
没有这个,我们完美的星球就无法运转 Without this,our perfect planet simply couldn't function
因为陆地上所有的生命都取决于天气 for all life on land depends on the weather.
大 气
我们都知道天气每天都在变化, We all know that the weather can change on a daily,
甚至每小时一次 even hourly,basis.
但几千年来,每年的天气模式一直是稳定的 But annual weather patterns have been stable for millennia
而生命所依赖的正是这种可靠性 and it's this reliability on which life depends.
每年十月,天气都会带来戏剧性的变化 Every year in October,the weather brings a dramatic transformation
去赞比亚的一小块森林 to this tiny patch of forest in Zambia.
风暴云开始形成 Storm clouds begin to build.
就在这时,稻草色的果蝠开始出现 And right on cue,straw-coloured fruit bats start to appear.
他们已经走了几百英里,甚至几千英里来到这里 They've travelled hundreds,if not thousands,of miles to be here.
他们总是在同一时间到达 And they always arrive at exactly the same time.
他们知道这些雨水会改变这片森林, They know that these rains will transform this forest,
让无数的果树成熟 allowing countless fruit trees to ripen.
蝙蝠贪婪地寻找新发现的丰饶 And the bats gorge on the new-found abundance.
每年只有12周, For just 12 weeks every year,
这片森林成了一千万果蝠的家园 this forest becomes home to ten million fruit bats.
地球上最伟大的哺乳动物聚集地之一, One of the greatest gatherings of mammals on Earth,
都挤在一个不超过十几个足球场的地方 all crowding into an area no bigger than a dozen football pitches.
蝙蝠从这个中心扇出, From this hub,the bats fan out,
消耗了30多万吨水果, consuming more than 300,000 tonnes of fruit,
传播种子和更新森林 spreading the seeds and regenerating the forests.
非洲最大的野生动物迁徙完全依赖雨水 Africa's largest wildlife migration entirely dependent on the rain
来到赞比亚的这个小角落 that comes to this small corner of Zambia
每年的同一时间 at the same time each year.
每秒,超过1300万吨的水 Every second,over 13 million tonnes of water
从我们的海洋蒸发,形成云 evaporate from our oceans,forming clouds.
地球自转和盛行的风 The spin of the Earth and the prevailing winds
确定这些云层的位置 determine where these clouds blow.
因此,有些地方的雨水较少 As a consequence,some places get less rain
还有更多 and others much more.
亚马逊雨林 The Amazon rainforest
地球上最潮湿的地方之一 one of the wettest places on Earth.
一年有三米的雨 It gets three metres of rain a year
因此,生活已经学会了应对几乎每天的倾盆大雨 so life has learned to deal with the near-daily downpours.
每年,几千年来, Every year,for thousands of years,
持续的降雨淹没了亚马逊的大片地区 the persistent rains have flooded vast tracts of the Amazon
把丛林变成季节性湿地 turning the jungle into a seasonal wetland.
住在这里的任何东西要么爬要么游 Anything living here must either climb or swim.
但有一种非凡的动物扭转了这场洪水 But there's one extraordinary animal that has turned this deluge
从灾难变成机遇 from a disaster into an opportunity.
这只火蚁已经到达了她已知世界的边缘 This fire ant has reached the edge of her known world.
她的前进之路现在已被上涨的河水堵住了 Her way forward has now become blocked by the rising waters.
她是很多人中的一个,几分钟后 She's one of many,and in a few minutes
他们的地下家园将被淹没 their underground home will be submerged.
被迫撤离的工人和士兵们试图拯救幼仔 Forced to evacuate,workers and soldiers try to save the larval young.
当它们的巢穴被洪水淹没时,这个殖民地似乎注定要灭亡 As their nest floods,the colony seems to be doomed.
但混乱带来秩序 But from chaos comes order.
火蚁聚在一起,每一只都和它的邻居锁在一起 The fire ants band together,each locking legs with its neighbours.
他们正在建造一个救生筏 They're building a living raft.
每只蚂蚁身上都长满了细毛,这些细毛能把空气吸引到身体上 Each ant is covered in fine hairs that trap air against its body.
当木筏形成时,这些空气为它们提供了一个漂浮的缓冲层 As the raft forms,this air creates a cushion for them all to float on.
这就是殖民地的力量 This is the power of the colony.
通过合作,他们变得永不沉没 By working together,they've become unsinkable.
没有人会落在后面 And no-one gets left behind.
从浅滩拉出来的殖民地现在受洪水的摆布 Pulled from the shallows,the colony is now at the mercy of the flood.
紧紧抓住幼虫 Holding tight to the larvae
把王后藏在木筏中央, and keeping their queen hidden at the centre of the raft,
这个殖民地漂流到更深的水里 the colony drifts into deeper water
在那里它们很容易被鱼吃掉 where they're vulnerable to fish
它们现在游过被洪水淹没的森林 that now swim through the flooded forest.
那些失去抓地力的人必须回到救生筏的安全处 Those that lose their grip must get back to the safety of the raft.
下颚连接成一根外科针头, With jaws that join to become a surgical needle,
这个池塘溜冰者能把蚂蚁吸干 this pond skater could suck an ant dry.
但在一起,殖民地是强大的, But together the colony is strong,
是时候驱逐寄宿生了 and it's time to repel boarders.
蚂蚁可以这样旅行几个星期 The ants can travel like this for weeks.
他们甚至开始依靠洪水来运送他们 They've even come to depend on the flood to carry them
去新的饲养场 to new feeding grounds.
最后,蚂蚁们可以把他们的筏子固定住了 At last,the ants can make their raft secure.
他们勇往直前,声称拥有自己的新家 Surging forward,they claim their new home
毫不犹豫地驱逐现有房客 evicting current tenants without hesitation.
首先安全的是它们的幼虫皇后, One of the first to safety is their larval queen,
从木筏的中心带出来的 carried from the heart of the raft.
这个棕榈树将是他们未来三个月的家, This palm will be their home for the next three months,
直到洪水退去,他们可以回到地下 until the floodwaters recede and they can head back underground.
我们星球的平均温度没有变化 The average temperature of our planet hasn't varied
在一万年内下降了一摄氏度以上 by more than a single degree Celsius in 10,000 years.
这使得我们的气候稳定, This has made our climate stable,
允许动物微调它们的行为 allowing animals to fine-tune their behaviour
围绕可预测的天气模式 around predictable weather patterns.
十月在亚马逊 October in the Amazon.
大雨已经结束了, The heaviest rains have come to an end,
河流水位的下降暴露了一种新的景观 and the falling river level exposes a new landscape.
三周前,这些一英里宽的沙洲根本不存在 Three weeks ago,these mile-wide sand bars didn't exist.
再过三个月,他们就会回到水下 In another three months,they'll be back under water.
但现在它们为巨型河龟提供了一个关键的机会 But now they provide a crucial opportunity for giant river turtles.
他们世世代代就在这个时候来到这里 They've been coming here at precisely this time of year for generations.
其中50000人——占世界人口的四分之一 50,000 of them - a quarter of the world's population.
他们来这里只有一个原因 They're all here for one reason.
但他们的机会很短, But their window of opportunity is short,
所以时间就是一切 so timing is everything.
爬上三米高的堤岸会让这只雌性 Scaling the three-metre-high banks will take this female
比几个月前更高更干燥 higher and drier than she's been for months.
她是来产卵的 She's come here to lay her eggs.
但其他人已经打败了她 But others have beaten her to it.
早到的人已经认领了 The early arrivals have already claimed
几乎每一寸海滩 nearly every inch of the beach
还有更多的海龟要来 and there are still many more turtles to come.
无论她转向哪里,空间都被占据了 Wherever she turns,the space is taken.
但是时髦地迟到确实有好处 But being fashionably late does have an advantage.
如果她早一点到的话,她的蛋可能就坏了 Had she arrived earlier,her eggs might have been
被那些寻找藏身之处的人挖出来的 dug up by those searching for somewhere to lay.
她找到了自己的位置 She's found her spot.
安顿下来,她下了将近100个蛋 Settling down,she lays nearly 100 eggs.
埋葬它们可以保护它们免受捕食者的伤害, Burying them keeps them safe from predators,
温暖的沙子孕育着离合器 and the warm sand incubates the clutch.
它们必须在河水再次上涨并淹没沙洲之前孵化 They must hatch before the river rises again and floods the sandbar.
任何在她身后躺着的乌龟都可能离开得太晚了 Any turtles that lay after her may have left it too late.
希望她时机把握得对 Hopefully,she has got her timing right.
两个月过去了,幼仔出现在这个世界上 Two months on,and the hatchlings emerge into the world.
他们在最合适的时候被放了下来 They were laid at the perfect time.
成百上千的人争抢这条河 Hundreds scramble for the river
就在水开始上升的时候 just as the water starts to rise.
那些还没孵化的就没那么幸运了 Those still to hatch aren't so lucky.
今年,暴雨来得早 This year,the heavy rains have returned early.
筑巢的海滩开始泛滥 The nesting beach is beginning to flood.
大多数幼仔都能及时逃走 Most hatchlings can escape in time.
那些还在地下的 Those still below ground
会淹死在它们的巢穴里 will drown in their nests.
几千年来,巨型河龟一直在为它们的繁殖计时 For thousands of years,giant river turtles have timed their breeding
围绕着亚马逊可靠的降雨周期 around the Amazon's reliable cycles of rain.
但是今天,我们的天气在变 But today,our weather is changing.
像这样灾难性的早期洪水过去每20年发生一次 Disastrous early floods like this used to happen once every 20 years.
现在海龟们每四个就得对付一次 Now the turtles have to deal with them every four.
风可能会把大量的雨水带到亚马逊, Winds may carry huge amounts of rain to the Amazon,
但他们并没有向地球的每一个角落提供这种服务 but they don't provide this service to every corner of the planet.
三分之一的土地每年的降雨量不到25厘米 A third of the land receives less than 25cm of rain a year.
沙漠被干燥的风刮得伤痕累累,被太阳烤得焦头烂额 Deserts are scarred by desiccating winds and baked by the sun.
但即使是这样充满挑战的天气,对当地人来说也是完美的 But even weather as challenging as this can be perfect for the locals.
随着南非沿海沙漠的黑暗降临, As darkness falls in the coastal deserts of South Africa,
沙丘变得活跃起来 the dunes come alive
伴随着一个令人惊讶的沙漠居民的呼唤 with the call of a surprising desert dweller.
雨蛙 A rain frog.
在一个年降雨量只有7厘米的地方,这可不是你所期望的 Not what you'd expect in a place that gets just 7cm of rain a year.
为了在这里生存,她必须避开炎热的天气 To survive here,she has to avoid the heat of the day
埋在沙子里 buried in the sand.
但每天晚上,她都会出去 But each night,she heads out
她在寻找水分 on her hunt for moisture.
短而粗的腿和丰满的身体是挖掘的理想选择 Short,stumpy legs and a plump body are ideal for digging
但不太适合四处走动 but not so good for getting around.
她不会跳,所以她摇摇晃晃地穿过沙丘 She can't hop,so she waddles across the dunes.
世界上最慢的障碍赛跑选手 The world's slowest steeplechaser.
用顽强的毅力克服困难 Obstacles are tackled with dogged perseverance.
她一晚上能走38米远 She can travel a whopping 38 metres a night.
当你和棉花糖一样大小和形状的时候,这可不是什么了不起的壮举 No mean feat when you're the same size and shape as a marshmallow.
白蚁 Termites.
它们是75%的水- They are 75% water -
一餐一饮合一 a meal and a drink in one.
但她不是最敏捷的捕食者 But she's not the most agile predator.
如果他们再靠近一点？ Maybe if they just came a little closer ?
哦,亲爱的 Oh,dear.
如果他们停止移动？ Perhaps if they stop moving ?
最后 At last.
但现在她面临另一个挑战 But now she has another challenge.
要吞下食物,她必须用眼球挤压 To swallow her food,she must squash in her eyeballs
把它压进她的喉咙 to push it down her throat.
白蚁可能多汁, Termites may be juicy,
但是他们没有给她足够的水来生存 but they don't provide her with quite enough water to survive.
这里很少下雨, It rarely rains here,
但是沿海沙漠确实有另一个可靠的水分来源 but coastal deserts do get another reliable source of moisture.
夜晚,凉爽潮湿的空气从海洋中吹来, At night - cool,moist air is blown in from the ocean,
形成雾堤,把沙漠笼罩在雾中 forming fog banks that shroud the desert in mist.
它凝结在植被上,湿润了下面的沙子 It condenses on vegetation,wetting the sand beneath.
所以她就在这里等待,通过皮肤吸收水分 So it's here that she waits,absorbing moisture through her skin.
雨蛙是如此依赖于水,他们只能生存 Rain frogs are so dependent on this water that they can only survive
在每年至少有100天雾的地方 in places with at least 100 days of fog a year.
在大雾弥漫的夜晚, And on the foggiest nights,
当其他青蛙出现在沙丘上时, when other frogs have emerged onto the dunes,
她抓住机会寻找爱情 she takes her opportunity to find love.
雄性雨蛙比雌性小, Male rain frogs are smaller than the females,
他的短粗的腿让他很难坚持住 and his stubby legs make it hard to hold on
所以他把自己粘在她的背上 so he glues himself onto her back.
仍然被他们拥抱着, Still locked in their embrace,
两人回到沙子下面产卵, the pair head back beneath the sand,where they'll lay their eggs,
远离沙漠阳光的灼热 safe from the heat of the desert sun.
但是有一个沙漠变得很冷 But there's one desert that gets so cold
液态水根本不可能存在 that liquid water simply can't exist.
蒙古戈壁沙漠的冬天 Winter in Mongolia's Gobi Desert.
零下40度 40 degrees below freezing.
世界上最干燥最极端的环境之一 One of the driest and most extreme environments in the world.
大多数动物不能在这样的天气里生存 Most animals can't survive weather like this
但是有一种独特的哺乳动物 but there's one unique mammal
在这里勉强维持生计 that manages to eke out a living here.
戈壁是地球上最后1000头野生双峰驼的家园 The Gobi is home to the last 1,000 wild Bactrian camels on Earth
在可能的边缘生存 surviving at the very edge of what's possible.
即使骆驼也需要水分, Even camels need moisture,
但这里的水现在都冻成了固体 but any water here is now frozen solid.
要想找到一个解决办法就得靠公牛了 It's down to the bull to find a solution.
带着他的牛群出发, Setting off with his herd,
他的搜索范围可达数千平方英里 his search could cover thousands of square miles.
推动他们前进,他可以连续几天继续前进 Driving them forward,he can keep going for days on end.
牛群从广阔的范围聚集在一起 Herds come together from across their vast range
都在找同一件事 all looking for the same thing.
这些长途专家能闻到30英里外的湿气 These long-distance specialists can smell moisture from 30 miles away
他们发现了一种气味 and they've picked up a scent.
即使在戈壁,地球上最干燥的地方之一, Even in the Gobi,one of the driest places on Earth,
风可以提供罕见的湿气来源 wind can provide a rare source of moisture.
雪是从西伯利亚吹到这个沙漠的 Snow is blown to this desert from Siberia.
它在哪里定居是无法预测的, Where it settles is impossible to predict,
可能不会持续太久 and it may not last long.
但至少现在,这头公牛已经找到了他一直在寻找的东西 But for now,at least,this bull has found what he's been searching for.
在寒冷干燥的空气中, In the cold,dry air,
雪不会融化 snow doesn't melt
所以一定要吃 so it must be eaten.
戈壁的风雪是一条生命线 The Gobi's windblown snow is a lifeline
整个冬天都能养活他的牛群 that will sustain his herd throughout the winter.
即使在这个最敌对的地方, Even in this most hostile of places,
天气仍然只够生存 weather still provides just enough for survival.
地球上最大最难以预料的天气 The largest,most unpredictable weather on the planet
从遥远的海上开始 starts far out at sea.
飓风、台风和热带气旋 Hurricanes,typhoons and tropical cyclones
是剧烈的,短暂的大风暴 are violent,short-lived megastorms.
但是有一个更可靠的天气系统 But there's a far more reliable weather system
起源于海洋 that originates over the ocean
在其发展道路上被所有人热切期待的人 one that is eagerly anticipated by all in its path.
季风是季节性的风,每年在同一时间吹 Monsoons are seasonal winds that blow at the same time each year
它们把大量的水从海洋带到陆地 and they carry colossal amounts of water from the ocean to the land.
圣诞岛 Christmas Island.
印度洋上一块遥远的岩石 A remote speck of rock in the Indian Ocean.
在过去的四个月里,它的森林内部一直保持干燥和多尘 For the last four months,its forest interior has remained dry and dusty.
这里的生活在等待改变 Life here is waiting for change.
11月,季风的第一场风暴抵达该岛 In November,the first storms of the monsoon reach the island.
对于那些在干旱中受苦受难的人来说,它们是一种受欢迎的解脱 They're a welcome relief for those that have suffered through the dry.
它们对岛上最多的居民来说是至关重要的 And they are vital for the island's most numerous residents.
圣诞岛上的红螃蟹 The red crabs of Christmas Island.
他们在潮湿的洞穴里躲过了旱季 They've spent the dry season sheltering in damp burrows
在落叶层下面 beneath the leaf litter.
螃蟹通过必须保持湿润的鳃呼吸 Crabs breathe through gills that must be kept moist.
所以只有在每年季风回归的时候 So it's only with the return of the annual monsoon
这些陆蟹最终会出现 that these land crabs can finally emerge.
现在湿度够大了, With the humidity now high enough,
他们可以开始史诗般的长途跋涉到海岸 they can begin an epic trek to the coast.
每一只红螃蟹都来自岛的另一端, Every red crab comes together from across the island,
他们以百万计 and they do so in their millions.
准确地说是5000万 50 million,to be precise.
它们是来释放只能在海洋中发育的卵的 They've come to release their eggs that can only develop in the ocean.
只有一个小问题 There's just one small problem.
它们可能是螃蟹 They may be crabs
但他们不会游泳 but they can't swim.
他们害怕大海 They're scared of the sea.
但他们别无选择 But they don't have a choice.
它们必须在最高的潮水上产卵 They must release their eggs on the highest tide.
每个都有大约10万个鸡蛋, Each carries around 100,000 eggs,
所以就两三个晚上, so over just two or three nights,
数以万亿计的二氧化碳被释放到海洋中 trillions are released into the ocean.
尽管有些人比其他人更成功 Though some are more successful than others.
一旦他们的工作完成,螃蟹将返回森林 Once their work is done,the crabs will return to the forest.
四周后, Then,four weeks later,
在下一个高潮 on the next highest tide
孵化出海, having hatched out to sea,
新一代红蟹回归同一海滩 a new generation of red crabs returns to the same beach.
在这样的好年景里, In good years like this one,
无数的人回到圣诞岛的海岸, countless millions arrive back on the shores of Christmas Island,
把海滩变成红色 turning the beaches red.
像他们的父母一样,他们也需要空气中的水分来呼吸 Like their parents,they also need moisture in the air to breathe.
所以在下雨之前, So before the rains move on,
幼小的螃蟹必须开始他们自己的史诗般的森林之旅, the young crabs must undertake their own epic journey into the forest,
在那里他们将等待未来几个月的干旱 where they'll wait out the next few months of dry.
圣诞岛蟹- The Christmas Island crab -
完全依赖季风的回归 entirely reliant on the return of the monsoon.
每年的天气节奏塑造了地球上的生命 The annual rhythms of the weather shape life across our planet.
在世界的某些地方, In some parts of the world,
季节性的干湿循环会带来巨大的变化 seasonal cycles of wet and dry can bring dramatic change.
很少有地方比这更明显 And there are few places where this is more apparent
而不是南部非洲 than southern Africa.
赞比西河 The Zambezi River.
它流经六个国家,排水面积达50万平方英里 It flows across six countries and drains half a million square miles.
在雨季的高峰期, At the peak of the wet season,
每秒有5000吨的水从维多利亚瀑布流下 5,000 tonnes of water cascade over Victoria Falls every second.
然而,每年雨停的时候, And yet,each year when the rains stop,
这些瀑布干涸了 these falls run dry.
就好像有人关了水龙头 It's almost as if someone turns off the tap.
五月 May
十二月 December.
雨季 Wet season
旱季 dry season.
几千年来都是这样 It's happened like this for thousands of years.
但有迹象表明这里的天气正在变化 But there are signs that the weather here is changing.
近年来,流经维多利亚瀑布的水量 In recent years,the volume of water flowing over Victoria Falls
下降了一半 has dropped by half.
对依赖动物的关注 A concern for animals that have come to rely on
干湿交替的自然节奏 the natural rhythms of wet and dry.
赞比亚的Luangwa河是赞比西的一条主要支流 Zambia's Luangwa River is a major tributary of the Zambezi.
每年旱季来临, Every year,as the dry season takes hold,
它逐渐变成了水池 it dwindles into pools.
当地人的住宿条件开始紧张起来 Accommodation starts to get tight for the locals.
由于周围没有别的水,这条河成了吸引游客的磁石 With no other water around,the river becomes a magnet for visitors.
数以百万计的红嘴雀群涌向水边 Millions of red-billed quelea flock to the water's edge.
这些吃种子的人每天都要喝水 These seed eaters need to drink every day
尼罗河鳄鱼也知道 and Nile crocodiles know it.
他们可能已经六个月没吃东西了 They may not have eaten for six months.
对他们来说,旱季是好时光的开始 For them,the dry season is the start of the good times.
他们不是每年这个时候唯一依赖的人 And they are not the only ones to depend on this time of year.
食用胭脂红的蜜蜂已经飞行了数百英里 Carmine bee-eaters have flown hundreds of miles
来自刚果的热带雨林 from the rainforests of the Congo
到了旱季的高峰期, arriving at the peak of the dry season,
当陡峭的沙洲被落水冲出时 when steep sandbanks are exposed by the falling water.
它们是个完美的巢穴, They're a perfect place to nest,
从上面掠食者够不着的地方 out of reach of predators from above.
食蜂洞可以伸入松软的河沙中两米 Bee-eater burrows can extend for two metres into the soft river sand.
已经有6000个巢穴了, Already home to 6,000 nests,
食蜂塔的房地产需求量很大 real estate at Bee-eater Towers is in high demand.
但是不要建得离邻居太近是值得的 But it pays not to build too close to the neighbours.
随着越来越多的鸟类抵达,争夺最佳筑巢地的竞争愈演愈烈 As more birds arrive,competition for the best nesting sites heats up.
这是一项干渴的工作 It's thirsty work.
在突如其来的骚乱中,他们很脆弱 In the sudden commotion,they're vulnerable from below
以及以上 and above.
非洲鱼鹰 African fish eagles.
他们是这里的永久居民 They are permanent residents here.
但在一年中的这个时候,他们不仅仅吃鱼 But at this time of the year,they don't just eat fish.
最安全的地方是在洞穴里 The safest place to be is inside a burrow.
但是一只飞过的老鹰却给整个殖民地带来了恐慌的冲击波 But an eagle fly-by sends shock waves of panic through the colony.
老鹰的策略是把猎物钉在河岸上 The eagles' strategy is to pin their prey against the river bank.
殖民地一片混乱, With the colony in disarray,
捕食者有优势 the predators have the advantage.
这些鱼鹰也选择在旱季繁殖, These fish eagles also choose to breed in the dry season,
因为它们需要吃蜜蜂的小鸡作为食物 because they need the bee-eaters as food for their chicks.
但今年的旱季并没有停止的迹象 But this year's dry season shows no sign of letting up.
部分河流现在已经干涸了, Parts of the river are now bone-dry,
强迫巨大的雄性河马离开它们的家 forcing huge male hippos from their home.
无处可去, With nowhere left to turn,
它们必须聚集在仅存的几片水域上 they must converge on the few remaining patches of water
但这些已经被占用了 but these are already occupied.
这里的居民公牛不能容忍另一只大公牛 The resident bull here can't tolerate another big male
在他缩小的游泳池里 in his shrinking pool.
新来的人被放逐了 The newcomer is banished.
太阳照耀着大地 Still the sun bakes the land
带来毁灭性的后果 with devastating consequences.
数以百计的巢穴被消灭了 Hundreds of nests are wiped out.
南部非洲经历了旱季 Southern Africa has experienced dry seasons
几千年了 for thousands of years.
但这是不一样的 But this is something different.
创下近40年来的最高气温和最低降雨量 Record high temperatures and the lowest rainfall in nearly 40 years
使非洲部分地区陷入一个世纪以来最严重的干旱之一 have thrown parts of Africa into one of the worst droughts in a century.
在整个地球上,我们曾经稳定的气候正在发生变化 Across the planet,our once stable climate is changing.
天气不太可靠 Weather is less reliable
而且越来越极端 and is getting more extreme.
野火越来越频繁 Wildfires are becoming more frequent.
干旱更为严重 Droughts are more intense.
暴风雨更猛烈 And storms are more ferocious.
所有这一切都源于最近全球气温的上升 All this from a recent rise in global temperatures
只有一摄氏度 of just a single degree Celsius.
然而,如果气候变化继续不受控制, Yet if climate change continues unchecked,
到本世纪末,我们可能会看到上升近五度 we may see a rise of almost five degrees by the end of the century.
我们只能想象这会对我们的天气造成什么影响 We can only imagine what this will do to our weather.
对于野生动物电影摄制组来说,还有一些事情更让人望而生畏 There are a few things more daunting for the wildlife film crew
比在广袤的土地上发现一种非常稀有的动物要难得多 than the prospect of finding a very rare animal in a vast area.
但这是蒙古戈壁沙漠的使命- But that is the mission in Mongolia's Gobi Desert -
拍摄少于500只的动物 to film an animal numbering less than 500
在50万平方英里的荒野里 in a wilderness of half a million square miles.
我们都上膛了起来,我们有40箱装备,我们有9辆车 We're all loaded up.We got 40 cases of gear,we got nine vehicles.
我们出发了,我们要去戈壁 We're off,we're heading to the Gobi.
来自首都乌兰巴托, From the capital,Ulaanbaatar,
横渡蒙古需要五天时间 it'll take the team five days to cross Mongolia
在深冬- in the depths of winter -
乘坐大型露营车的车队, travelling in a convoy of large camping trucks,
在家里待五个星期 home for the next five weeks.
1000英里后,车队到达戈壁并扎营 1,000 miles later,the convoy reaches the Gobi and makes camp.
我们第一天早上就醒了, Well,we have woken up on our first morning,
离日出还有一个半小时, and it's about an hour-and-a-half before sunrise,
我们昨晚把火放掉了,真是太愚蠢了 and rather foolishly we let the fire go out last night,so it's
这里冷-20 a cool minus 20 in here.
所有的东西都是冷冻固体-牙膏,早餐用辣酱, Everything's frozen solid - toothpaste,hot sauce for breakfast,
即使是美联社的尿壶 even the AP's pee bottle
所以这很好 so that's nice.
在比利时那么大的地方发现稀有动物 Finding a scarce animal in an area the size of Belgium
这显然不是一件小事 is clearly no small task
但是没有当地研究人员的帮助是不可能的 but impossible without the help of local researchers.
每一天,这个团队都要搜索数千平方英里的地方 Each day,the team scour thousands of square miles.
面积很大,只有450头骆驼, It's a huge area,and there's only 450 camels,
所以这真的有点像大海捞针 so it really is a bit like a needle in a haystack.
真是大海捞针 A truly enormous haystack.
450头骆驼 450 camels
28000平方英里 28,000 square miles.
放松,是吗？是 啊 Easy,yeah? Yeah.
在地平线上搜寻骆驼的时候, And when scanning the horizon for camels,
犯错太容易了 mistakes are all too easy.
另一个灌木丛 Another bush.
A布什,对不起 A bush.Sorry.
有时连一棵灌木都看不到 Sometimes there's not even a bush to look at.
看到什么了吗？没有什么 See anything? Nothing.
又爬了一座山 Another hill climbed.
另一条线索随之而来 Another trail followed.
又一条死胡同 Another dead end.
值得庆幸的是,专家们仍然持积极态度 Thankfully,the experts remain positive.
我希望你能很快见到他们 I hope you can see them soon.
是 啊,是的,求你了 Yeah,yeah.Please.
离开英国两周后 Two weeks since leaving the UK.
我只是希望我们没有 I'm just hoping that we haven't
在这个问题上有点过于雄心勃勃 been slightly overambitious on this one.
有点担心这其实是不可能的 Getting slightly worried it might actually be impossible.
嗯,很好的支持,谢谢 Hmm Good support there,thanks.
最终,这支队伍发现了他们的第一只骆驼 Eventually,the team spot their first camel
但不幸的是,它首先发现了他们 but,unfortunately,it spotted them first.
很远 Very far away.
偷猎让幸存的骆驼非常紧张, Poaching has made the surviving camels very nervous,
一旦他们开始跑步,他们就可以继续跑好几英里 and once they start running they can keep going for miles.
当寒风吹起, And when the winter winds kick off,
骆驼的所有迹象都消失了 all signs of camel vanish.
所以,在过去的24小时里,我们经历了 So,for about the past 24 hours,we've been experiencing
戈壁风.它整晚阵风时速高达70英里, the Gobi winds.It's been gusting up to 70mph hour all night,
温度可能降到了-50度 and the temps have probably been down to almost -50
随风而动-冷静.我们只能蹲下来,我们不能拍这个 with the wind-chill.We just have to hunker down,we can't film in this.
当大风减弱时,搜寻工作显示出新的希望 When the gale eases,the search reveals new hope.
我们这里有很多新的骆驼足迹 We got a load of fresh camel tracks here.
所有的轨迹都是单向的- And all tracks head one way -
走向更偏远的南部戈壁 towards the even more remote mountainous southern Gobi.
团队必须决定是否应该跟随 The team must decide if they should follow.
你认为那片土地对我们可能更好吗？ Do you think that landscape is likely to be better for us?
更多的骆驼和近距离接触？ More camels and closer encounters or ?
你的直觉告诉你什么？ What's your gut telling you?
因为冬天, Because of the wintertime,
我们要去看看雪 we need to see some snow Mm.
去看骆驼 to see camels.
骆驼要在这片无水的沙漠中生存,就得靠找雪 To survive in this waterless desert,the camels depend on finding snow.
所以,在看不到任何东西的情况下, So,with none in sight,
这个队决定在南方的冰山上碰碰运气 the team decide to try their luck in the icy mountains to the south.
果然,下雪了- Sure enough,there's snow -
而且很多 and lots of it.
但是更大的露营车在山区挣扎, But the larger camping trucks struggle in the mountainous terrain,
球队被迫在没有他们的情况下继续前进, and the team are forced to go on without them,
让它们更多地暴露在冬天的环境中 leaving them somewhat more exposed to the winter conditions.
上周已经降到-25了 It's been down to -25 over the last week.
所以非常薄的帆布帐篷将是一个全新的体验 So very thin canvas tents will be a whole new experience
在戈壁沙漠里 in the Gobi Desert for us.
我现在穿着两条裤子,保暖的, I'm wearing,currently,two pairs of trousers,thermals,
上面有暖气,两对套头衫,三件外套,两顶帽子 thermals on top,two pairs of jumpers,three coats,two hats
所以我想我应该没事 So I THINK I should be all right.
你没事吧,埃迪？ You all right,Eddie?
哦,我太棒了,是的 Oh,I'm terrific,yeah.
太棒了！ Really terrific!
我很舒服 I'm all cosy.
我不冷.我冷 I'm not.I'm cold.
真冷！ Really cold!
正如阿迪亚所预言的,下雪来了骆驼 As Adiya predicted,with snow come camels.
到处都是迹象 The signs are everywhere.
但是已经走了这么远, But having travelled so far,
他们不能冒险破坏这次机会 they can't risk anything ruining this chance.
骆驼似乎不太喜欢这些车 Camels don't seem to like the cars so
现在我们走 now we walk.
我们已经走了五英里了, We've been walking for about five miles now,
徒步穿越这片土地, and hiking across this landscape,
它真的让你对骆驼有了新的尊敬 it really does give you a new-found respect for the camels.
我们在平原上见过一些骆驼, We've seen some camels way out on the plain here,
但为了不吓唬他们,约翰打算自己出去 but in order not to scare them,John's going to head out on his own.
是的,是的,我能看见他.他,呃 Yeah,yeah,I can see him.He's,um
去南方？ Going to south?
是的,他要去南方,他就在山脊的这边 Yeah,he's going to the south,he's just this side of the ridge.
骆驼来到约翰身边 The camels come to John.
他们是？骆驼要来找约翰？ They are? The camels are coming to John?
对！真的？ Yes! Really?
也许拿着袋子到我现在的地方来 Maybe grab the bags and come down to where I am now
在这些灌木丛旁,我们看看能不能滑进绿洲 by these bushes,and we'll see if we can't slip down into the oasis.
这太神奇了.这是一场艰苦的战斗 This is just amazing.It's hard fought
但回报是如此值得 but the reward is so worth it.
因为现在我们在100米外 Because right now we're about 100 metres away
从地球上一些最稀有和最坚韧的哺乳动物身上 from some of the rarest and hardiest mammals on the planet.
多大的特权啊 What a privilege.
这个团队的行为很少有人看过 The team film behaviour very few people have seen.
世界上最濒危的生物之一的罕见图像 Rare images of one of the world's most endangered creatures.
曾经遍布中亚, Once widespread across Central Asia,
这片无人居住的沙漠是野骆驼最后的家园 this uninhabited desert is the wild camels' final home.
如果不是阿迪亚的团队,它可能会完全消失, Were it not for Adiya's team,it might have disappeared altogether,
但由于他们的工作,我们可能还保存这个戈壁的图标 but because of their work we may yet save this icon of the Gobi.
下次 Next time
海洋 oceans.
所有海洋生物都依赖于水的持续运动 All marine life depends on the continuous movement of water.
我们的海洋被强大的潮汐联系在一起 Our oceans are linked by powerful tides
在有水流的地方, and where there are currents,
有生命 there is life.
开放大学制作了一张免费海报 The Open University has produced a free poster
探索我们完美的星球 exploring our perfect planet.
如需订购,请致电0300 303 0901 To order,please call 0300 303 0901.
或者去bbc.co.uk/perfectplanet Or go to bbc.co.uk/perfectplanet
并按照链接到开放大学 and follow the links to the Open University.