인구 0 의 여파 http : / / tvpot . daum . net / v / v 8288 hP 8 PGPCU 8 ViyZvyyVgKorean subtitle of the “ Aftermath : Population Zero ” Based on a work at http : / / channel . nationalgeographic . com / . The Korean subtitle file is here . English transcript I wrote down for the Korean translation work . Aftermath : Population ZeroPlanet EarthA place of constant change at the hand of powerful beingsushundreds of thousands of miles into spaceand deep beneath the earth ’ s surfacewe ’ ve created an amazing worldshaping continenntcreatingig ingenius manumentand transforming landscapesbut the only way to fully understand the scale of our influenceis to witness the world without itif we suddenly disappearwhat would happen to our highwayscitiesriversour greates monunmentsenter a desolete worldA world without humansOne mintitue from nowevery single person on earth will disappearit doesn ’ t matter how or that ’ s far fetchedwhat ’ s important iswhat will happen when we are goneof the billions of people in the worldhalf live in citiesfarms and pastures cover a third of all dry landWe ’ ve damned and deverted half of the world ’ s major riversfive hundred millions cars clogged the roads and highwayswev ’ affeted the airthe seaand the landbut have we changed Earth forever ? if we vanished , could the planet recovereven erase all the evidence that we ever existedFriday June 13 th , in Berlinit ’ s 1 : 30 P . Macross the atlantic stock brokers get an early start on Wall StreetLas Vegas is anything but sleepingAnd in Tokoy , Paris took their kinds into bedThen suddenly the human race comes to an endevery single person in every corner of the world vanishescities transform into ghost townslaughter and linger only to become quickly fading echoscences come to a shocking haltthe moment we disappear the world starts to changethere is an errie silent in cities that are suddenly a little coolerthe average human body puts out as much as heat as one hundred watt light bulbtake away 8 M people in New York , and the entire city cools down by a fraction of a degreeEven thought we are gone , the machines left behind keep workingall over the worldhundreds of plants approach airport runwaysmost decended over one hundred miles an hourand today all the empty cockpits every landing will end an fireballthousands of other planes fly thourhg the sky on auto pilotmany will stay in the air for few more hoursbut when the fuel runs out , graivty will pull them back to earthin a world without humanscities continue to function on thousand ’ s automated systemscomputers keep in touch with hundreds of satellites which will continue totransmit informtion across the globeas long as the power stays onpower is gnerated by more than 50 , 000 power plants around the worldin the U . S coal fire plants proudce half of the country ’ s electricityto keep the fires burningthey require a steady supply of coalbut there will never be another delieverythe coal plants start to failthe werstenr grid is knokced out by rolling black outthe shimmering ligt of Las Vegas will never shine againthe sun brkeas through the clouds in pennnsylvania which still has poweras temperature rises automatic air conditioners turn onthe need for electricity will surgesthis area relies on wind power in addition to coaleven without usthe wind turbine will still runningso theer is enough power to meet the new demandbut at the local power station there ’ s no one to decide that more power is neededcomputers detect the problem and shut down the entire systemPensyylvnain is now without powerniagra fall Canada is home to home to one of the world first commercialhydroelectc plantsit provies power to more than two million homesA mile of stream water serges into tunnels that sneak under the citywhen it reache the power plant it drives the turbinescreate electricityless than two hours ago peowple were monitoring this powerful systembut with no one at the controls the turbines floodand a plant shut itself downseconds later blacktouts sweep through parts of ontario and New Yorkthe worldwide loss of electiricity reaches the neuclear power plantsautomated system detect electrical grid is failingand that shut off reactorsthis is just the beginningsix hours after the humans diappearthe sun goes down in Europethe last power plant go off linethe dark ages are backthe sun is still shining on north american andthousands of cars are still runningevery gallon of gas they burn sends 90 lb CO 2 into the airthis greenhous gas can polute the sky for the next 100 yearswithout us , another source of manmade global warming is also disapperingplanes send out water vapors in their exhaustand the cold air transfmors the vapor into cloudsbut as the last plane falls from the skythese manmade clouds disapper with thisfuel starved jets aren ’ t the only disastors rolling through this new worldall over the globe industrial plants react to the permanent loss of powersme gases needs electricty to keep them cold enough to be stored in liquid formif they don ’ t have power , the cooling unit stop workingeventually the liquid to a boil and create dangerosuly high pressuresmank tanks have relief valves vent gas to avoid explosionbut hundred thousadns of tanks all venting at the same time is unimaginablethe gas spreads wherevr the wind blowsand some are heavier than aira danger to any creature that roots around the soildthe same chemical that made the modern world possible are now set loose todestroy itEmergeny bakc - up systems are sustainng the world ’ s nuclaer power plantsautomatic diesel generators had kicked in to perevent catrsprophic meltdown . But the diesel fuel won ’ t last foreverall over the world pets are geeting hungryif they don ’ t find food and water soon they will diebut they are not the only animals affected [ 11 : 30 ] the global power failure is also impacting zoos and safari farmsno longer contained by electric fencespredators are free to explore their new worldand its dangeourschlorine gas from derailed a train killed this herd of deerschanges are also taking place in some natural gas faciliteswith the power off the liquid natural gas is starting to ventbut most of its being burned offan automatic saftey feature desinged to contain gas leak at placewith the tank is ventingthe explosive gas can reach idling cars left behind their owners disapperedit only takes one small sparkand the new world echoes with explosionsand this is just the startfires this will burn for days as hundreds of chemical plants around the worldsend dangeours toxins into the airin just six short hours , our disapperance has triggered series of catastropharound the worldand that animals and atoms infiltrate this world without fumesa much bigger disaster could loomit ’ s been three days sinice humans disappered from the earthpower plants failuremachens had ground to a haltthousnands of tons of toxic chemicals have escaped from the world ’ s placein London England big bands due for its windingbut without the help of human hand it rings for the last timehuman timeand human history have stoppedbut life on earth continueshouses and apartments are still inhabited by increasingly hungry petsit ’ s been 3 days since anyone has fed themso they devour anything they can findin the u . s tens of millions of dogs were trapped in their owners vanishednow they either have to break out of their homes or diewith the failure of power plants round the globe pets inherit the dark worldat nuclear power plants emergency diesel generator started working as soon asthe electricity failedbut without power this building and hundreds like itsoon cause an unprecedented disasterthis is spent the fuel handling buildingwhere radioactive fuel is stored in the cooling pool after it used to generatepowerthe pool is thirty feet deep and filled with four hunrdes tons of spent nuclearfuelthe result of atom splitting to create nuclear energyand split atoms keep releasing heat and radiationthe spent fuel is contained in zercloid tubesand they are dangeoursif they ’ re not kept under water they will quickly heat up to 1 , 000 degreesthey neeed to be kept in flowing refirgirated water for years before they cool offnuclear storage sites can be found all over the worldthere are 75 in the u . s alonethe spent fuel is safe as long as the generator stay on and keep the water coolbut if someone doest refill them they will grind to stopand this time no one is comingpets are now learning to live off the landfor some life was once rich with food and waterbut now scrounging through garbage is what provides mealsas for water things have change down by the riverpumps at sewage treatment plants don ’ t work without electricityso raw human sewage is seeping into lakes and riversabandoned pets aren ’ t the only animals to struggle for survivalthe world is filled with cattle 1 . 4 billion of them and without hunmans they too have enforced to defendfor themselevsnow that we are gone 9000 cows a day are saved from slaugther in the u . sbut dairy cows need 100 lb food and 25 gallons of water every day to survivewith no electricitytheir water supply is drying upthe cows are on their ownin a cruel twist of fatethey are safe from slaguther house but they may all die from dehydraitonand things don ’ t look much better for zoo animalstrapeed in ther cagesmany of them will diebut those once contained by electric fences are prinsoners no morethey finally break freeelephants need up to 400 lb food a dayand finding in the suburbe will be struggledthese enormous arboreal will give serious pruning to each neighborhood theyvisitpredators also prowles suburbsthese hungry lions spotted another escapee from the zoobut lions are skilled hunters on savana not in pulic parkand climbiing plastic is one challenge they can ’ t winwith the baboon out of reach they need to find some easier preycamels on the other hand are having no problem finding foodthey eat almost any vegetation grass , leaves , even thorns that other animalsavoid on the menuand with food at every turn camels easily adapt to a world without humansthe lions have moved from the park to the pouchas they continue their search for foodon both sides of the glass an unexpected and unusual sightover head birds are migratingand without humans around many more will survie this yearat night birds use the stars to navigatewith the power onlights and glowing skyscrappers resemble starsso birds often circle them all night and die of exhaustionbut in a world without humans there is no powerso mirgraing birds fly more safely trhogh major citiesmillions will reache ther destinationstheir population will boomon city streets dogs have gone from pets to predatorswithin a week loosing their human masters they are forming pacts fighting fordominantswhich hasn ’ t happened since 2005 when hurricane Katrina forced humans toevacuate New Orland and leave many dogs behindthe dogs started hunting in pacts and threathing humansbut not all dogs are equalwith more than 400 different breeds some varieties like this puddle don ’ t havethe size or strength to competeand like wolves dogs will kill their ownso every small dog is potential mealin the next few weeks most smaller dogs will be killedat nucler power plantsdisel generators are finally running out of fuelthe power goes off for good inside the spent fuel buildingsthe cool water stops flowingthe temperature starts to risein just a few days the water will boil and evaporateand without people to stop ita nuclear disaster greater than the world has ever seen is now inevitablea massive dosses of radiation 500 times greater than what was unleashed on hiroshima will be releaseddogs from the city are roaming the countryside lookng for foodand they ’ re hungry enught to try jus about anythingeven corpsesthe fields are littered with dead dairy cowswhen we were around dairy cows provide us milk for eight thouands yieldnow thery are rotting carcasses will do nothing more than sustain hungry dogswho just 2 weeks ago were probably eating comfortably from a carenot all cows are deadin the wide open spaces of western north americafree range cattles are thrivingbut the same can ’ t be said for the domesticated animals trappend in pens 1 . 5 billion chickens have died in the u . sleaving only free range poltrees to roam among the world full of predatorsdeath is in the aira time bomb ticksthis world without humans is about to suffer a devastaing blow 10 days after humans disapper from the earththe power is offcities are quiteanimals that escape from zoos and safari parks roam free but fight to survivepredators are problemsbut we left behind other deadly forcesfor days superheated steam has been escapingfrom the spent fuel building of this nuclear power plantwith no emergency power there is nothing to keep the fuel from heating upthe fuel burns through casing and sets fire everying in the roomradition equal to 500 times atomic bombs is about to explodethis is a nuclear disasterand there is no one to stop ita deadly mix of radioactive particle spews from the plantsome of them like strotium 90 will be dangeours for 300 yearsplutonium will be radioactive for 200 , 000 yearspine trees near the nuclear power plant are first to dieradioactive particles cling to ther bark and resinchrolophyll which makes tree green is damagedand as a result they turned redthe last time a forest die like this was during the chernobyl disaster in 1986 . radiation contaminated in area of fifty thousand square milesthe size of alabamain a wolrd without humansthis scene is repeated againd and againnuclear power poisons the earth we left behindthere are six nuclear power plants in illnoisradioactive smoke fills streets of cicagothe site of the world ’ s first self - sustaining nuclear reactionfires break out in the many of 30 nuclear plantslocated in the eastern u . seach one is almost twenty times more radioactive than the chernobyl diastermany of europe ’ s 173 reactors also ignitetheir spent fuel burnscarried by the windthe radiation is an invisible poison that settles over thousands of square milesif we were still on the planetit would cause cancer in millions of peoplegiant blooms of radioactive smoke and particles spread across the northernhemispherewinds push radiation away from the reactors in europeif conditions are rightit could reach as far as north africaradiation from some of japan ’ s 53 reactors drifts across the pacific oceanthe world ’ s most remote islands are in its pathrain washes much of the radiation from the skyconcentraing its deadly effectssome areas become more deadly than otherslarge animals flea areas where plants have died from radiation poisoningbut small creatures aren ’ t as luckymany live on the forest floorwhere leaves and soil are coded in radioactive particlesradioactive beta particlescan only penertate half of an inch into living tissuefor large animals like deertheir vital organs are spared of direct assaultbut it ’ s differentfor small animalstheir organs aren ’ t so insulatedradiation cripples themin the worst hit areasover half of the rodents and insects diefor animals in the cities and suburbsthey have access to food that ’ s much less radioactivegrocery stores can provide enough food for city mice to last for generationsthey also make a perfect breeding grounda female mouse can give birth to more than seventy offsprings in a yearsince radiation has killed many of the mice outside this cat heads indoorswhere he just might get 8 mice a day he needs to stay healthyhumans need a variety of food to get all the fat , protein , and vitamins wereqirecats don ’ tthey can produce their own vitamin Cand they get the rest by eating organs and entrails of miceall over the planetanimals are invading the human world to find foodand what we left behind will keep them aliveeven as clouds of radiation spreadradiation has dissipatedcities are quite and the atmosphere is improvingthe air is clearerand manhattan and toronto the view has increased from twenty miles to 100 city dogs still roaming the countryside looking for foodmost of these form of hats are far from skilled huntersbut if they ’ re hungry enough they ’ ll try to attach anything walkslike wolves dogs hunt by instinctgoing down from leg to neck to bring down the large animalbut instinct is no match for a beast weighing thousands of poundsthe dogs aren ’ t threatand without humans the elephants are predator freein just a few monthspets and zoo animals have become killers in a radioactive worldbut another challenge is on the horizonwintersix months after humans disappearit ’ s early decemberin a world without usformer zoo animals and pets either adopted or diein some parts of the world animals are about to face their next challengethe coming wintera common misconception is that cochoroche can survive almost anythingbut cockroaches are imports from the tropics and only spread to north as westarted using central heatingwith electricity gone and the furnaces offmillions of cockroaches will be dead by the new yearfor other animalsour sudden disapperance isn ’ t a problemit ’ s an opportunityracoons and squirrels already know the best way to survive the coldis to sleep through itand this winter they have many new dens to choose fromthat are drier and safer than sleeping outsidethese squirrels are tree dwellers so they can pop upstairsskunks on the other hand prefer the groundhibernating animals don ’ t need heateven when their body temperatures drop do almost a freezing pointit ’ s a survival strategy their ancestors evolved long agobut this african elephant isn ’ t equipped to deal withfrigid temperatureshis body evolved to get rid of heat not keep itin africa his thin ears would have helped him keep coolbut now they ’ re just getting frostbittento survive he needs to head southafter winter comes a spring like never beforein the forest near ruined nuclear power plantsit ’ s a silent seasonpoisoned by radiation these evergreens have lost their ability to grow newshoots and branchesbut further from the power plantsspring helps repair the damage we left behindrain washes radioactive debris from leaves and barkspoisonous atoms are driven to undergroundthere ’ s still a threat to anything live therebut our radioactive fingerprint is staring to disappearand that ’ s not the only threat to animals that has vanisheswithout humans there is no one to huntand the population explosion of animals takes over the empty spacethis new world is filled with new opportunitiesit ’ s almost been a year since every car on earth ran out of gasin their last year on the roadcars pumped seven billion tons of carbon dioxide into the airmore than one ton for every person on earththis greenhouse gas is accounted for half of the impact humans had on globalwarmingbut now the carbon dioxide will be cleaned up faster than ever beforein spring new plants and leaves need carbon to growthey draw it out of the airnaturally cleansing a polluted planetnew trees soak up more carbon than old onesthis spring nature has many places to growfor the past ten tounsand years we ’ ve been able to imposing our will on theplanetin downtown Los Angeles 2 / 3 of the land covered with roads and populouswe made our mark in the suburbs tooin the u . s lawns and golf courses cover an area bigger than Floridanow that we are gonenature is reclaiming the earthnothing is immunemillions of miles of roads and highways are slowly being invaded by moss andlivesand all they usually need is watercracked roads are filled in with moss and grassA once carefully groomed soccer field now grows wildfast growing trees take root where children once playedall these new plants allowed to nature soak up greenhouse gases like carbondioxide faster than when humans were hereyear after yearour grip on the land is looseningit ’ s been thirty years since humans disapperedat nightthe only light that comes from the moon and starsonceearth was so well lidit was easily seen from spacebut 30 years after the light went outEarth inhabitants watch a new kind of light showhundreds of strange shooting stars fly through the skya few even make to the groundthe fiery wreckage contains cluesthat these are not normal meteoritesthese shooting stars are some of the last survivors of the space agehumans left 25 , 000 objects orbiting the earthmost of it was junkclamps , pieces of rockets , remnants left from our fifty years of working in spaceand without usthere is nothing to keep it from falling back where it came fromwhen solar storms errupt on the surface of the sunradiation expands earth ’ s atmosphereand slows orbiting satellites and space junksgraivty does the restsatellites in higher orbits had been slowly spiraling closer to the earthfor the last 30 yearsnow with dead batteries plummet to the groundback on earththe world continues to changehuman homes slowy collapseplants and animals help speed up the processfor three decades animals have knocked through the roofs and wallsdirt and seeds blown into housesliving rooms have become homes for treesrainfalls into dining rooms and kitchensceilings and floors rot and fall apartschools once taught about human triamphs over naturebut in just 30 yearsnature reclains much of what humans took awaychanges are especially obvious along the world ’ s coastlineswhere we built many of our cities and homesnow hurricane washed them away as if they ’ d never existedfrom Miami to HalifaxMetions and cottages are destroyedmanmade global warming still affects the world ’ s oceanseven thirty years after people stopped polluting themwhile house collapse on the landremnants of the human world create new homesfor marine lifeat least 50 , 000 ships are stewrn along seashoresand are resting on the sea bottomthese shipwrecks are magnet for sharks and fishesand they provide thousands of places for fish to live and breatheabove the wavesnature ’ s advance continueshumans used one third of all dry land for farm and pasturesbut nowfields are originally planted with single crops have been invadedby a variety of fast growing weeds and wild flowersevery yearforests expand their territorygrowing closer to meadows , bushes and trumpsit took us 10 , 000 years to force our will on the planetcarve our mark on every continentnow nature is invading civilization citadelthe concrete giantwelcome to a world 30 years after humans disappearedthere is no powerthe screech of cars and jets will never be heard againbut cities are still filled with lifewild dogs hunt in packsroaming the roads and sidewalks we once ownedplants and trees are taking overnew york ’ s central park is actually getting biggerdirt and seeds blow through the city and take root everywheremanhatan transform from gray to greentime square once it was a hot spotfor millions to celebrate start of the new yearnowit ’ s being engulfed by obligted greennature is reclaiming the worldcity by cityin Londonyoung trees sprouts in Trafalgar Squarein Berlina forest surronds the brandenburg gateonce the division of east and west germany 30 years after we disapperglass stumbles onto deserted streetonce glass covered office towers symbolized the modern agethere was more glass in one skyscapper thanall of the glass made during he Roman empirebut most skyscrapers were built using cock and metal clips to keep windows inplaceafter 30 years the clips are rustingthe caulking crackswater gets into the cracks and the frames get weakthe era of the gleaming skyscrapersis endinghigh above them hawks and other raptors are on patrolkeeping an eye out for scampering preythe concret jungle is bornrelics of human existence slowly disentergrateafter years of neglectpaint peels awayraw metal is exposed to the elementsrust spreadsthe steady advance of nature also damages concretethis was once a train station crowded with commutersnow its concrete roof is falling apartconcrete is strong but extremely porousrain washes away the limestone used to make itstalactites grow a centimeter every yearand then break off slowly weakeningthe concretethis roof will collapsein less than twenty yearshumans maybe gonebut we ’ re still contributing to this destructionwe burnt fossil fuels and pumped tons ofcarbon dioxide into the air for morethan a 100 yearsnow the planet is slowly getting rid of our pollutionas carbon dioxide returns to earthit mixes with rainwater and produces carbonic acidwhich eats away the the world ’ s concretemuch of our modern worldrose from concretenowthese soaring buildinigs , engineering marvelsare ready to fallcities all over the world face the same fatea slow disintegrationwithout windowshighrise offices are now occupied by birds and animalsexposed to the elementsceiling tiles and drywall are no matchfor more than a half century of wind and rainrust is everywheremoisture has penertrated the walls and doorsand paint peels off every surfacebut the damage goes deeper than thata city like Parisgets up to twenty five inches of rain every yearnow that the windows are gone nothing canstop the rain from flooding the concreteskeleton of this office towerand creating cracksthe cracks are caused by when carnbon dioxidepenetrates the maze of microscopicspores in concretethen it winds in until it reaches the rebarmetal that gives reinforce concrete with strengthrebar is usually hidden from the outside worldbut now the carbon dioxide is causing the bar to rustas the rust radiate out from the steelit will expandssplitting and crakcing the concretethe building is under attackfrom the inside outcracks are appeariing all over the worldand there ’ s no one around to fix themwhen pepople were on the planetproblems like this would be repairedbut now cracked concrete can ’ tbe reinforced or replacedthe damage runs uncheckedand the changing seasons only makesmatters worseas water turns into ice it expands andputs more pressure on the crumbling buildingsthe constant freezing and thawingmakes the cracks growin just 100 yearsthe concrete becomes too fractured and brittleto support its alonethe upper floors collapseand combined weightcrushes the floors belowthe building crumblesto the groundour cities are disintegratingthe planet is absorbing what we left behind 120 years after hummans disappearmany modern skyscrappers have collapsedinto heaps of rubbleconcrete walls have been destroyed bysteady on slaugther of air and rainbut the new landscape has made cities a little coolwhen we ruled the planetheat from the sun soaked upby black roof and roadsaspalt absorbs 95 percent of the sun ’ s lightblack surfaces made citis up to 10 degreeshotter than surrounding areasbut now that we are goneasplalt is being covered by grasses and treesshade keeps the ground coolthe temperature dropsthe world ’ s climate is changingmanmade global warming is finally coming to an endthanks to oceansfor the past 120 yearschurning waves have absorbedcarbon dioxide into the top layers of the seasthen microscopic plankton and shellfishabsorbed into their bodymany died and sunk to the bottom of the oceantaking our carbon dioxide to depthsafter the last car stopped runningmuch of their exhaused finally being buriedour impact on the climate is decliningthe changes are being filled all aroundthis new worldin Berlinyoung trees attract new lifethe saplings growing out of the concreteprovide food for animalsbut where there are deershunters are sure to followthese wolves have come in from the countriesmost of the wolves in germany was killedby humans long agobut these hunters are from Polandand wolves aren ’ t the only predators arrivedwhen we disapperedmillions of domesticated dogs had to fight or dieat first the dogs have an enormous edge in numbersbut they were facing a battlethey couldn ’ t winmany of the newly librated pets renewedunable to reproducethey lost their advantage and slowlydied outbut not all dogs disapperedthose that managed to survive adaptedto the new reality and mated with wolvesnow all they look more like austrailan dingosmedium sized with straight hair and long snoutgenetically almost identicaldogs and wolves were kept apart by humansbut in a world without usdogs and wolves genes are mixingsharing the future of the canines speciesand this new generationis thriving in cities 120 years after humans disappearthounands of wolves hunt across europethey need to eat every few days so they arelured by their preydowntownthe urban jungle becomes a new killing groundthere were some places getting colder and whiter thanwhen humans were herewith no black roads and roofssome cities definitely suffer the chillin nothern cities more snowfalland stayes longerbut packs of wolves and dogs still manage to find foodthrough this cold winterssouth of the freezing tempratures and riversdivered by humans for power and farmersthis is the thames river in London , Englandhumans tried to tame it a little more than 1 , 000 yearsonce thames was a gateway for thousands of shipsbut its high tides and storm surgesoften threatened to flood the cityso one of te largest systems offloodgate was built to hold the waters backbut without peoplethe river is out of controltides has sucked boats into bridgescreating dams and forcing the thames flow around themthe banks are floodedLondon returns to the marshethat the romans found here 2 , 000 years agoin the ameria south westthe problem is too little waterthis is imperial valley in sothern californiaonce it provided half of america ’ swinter fruit and vegetableswith 365 days of sunshine some crops had four harvests a yearbut only three inches of rain falls annuallythe dry air helps preserve buildingsbut it ’ s deadly fro cropspeople intervened to make this desert into bluefarmers brought in nine hundred seventy sevenbillion gallons of water each yearfrom the Colorado riverenough to cover every surrounding fieldsin six feet of waterbut when we disappearedthe irrigation stoppedwhat was once California ’ s farming miracleis now a barren desertanother manmade oasis can be found 300 miles northeastLas Vegasbuilt in the middle of desertits Casinos and thousands use of waterbrought in by electric pumpswhen the power went offthe taps went drynow with just a few inches rain a yearthe desert is recaliming the citybut nature hasn ’ t erased all evidences of our presencethis is the Colorado riverit hasn ’ t changed much in the 150 years since we disappearedbut long agoit was much deeper and strongerit even helped to carve the grand canyontoday the colorado is still a shadow of its former selfdozens of dams were built to harness its strengthand keep it from reaching the ocean as torrenthumans also built reservois to contain its massive powerand there where the water will stayas long as the dam can hold the river back 200 years after humans disapperednature has taken over many of the world citiesbut some rivers are still shackled by concrete monolithsdozens of dam still hold back the colorado riverthe largest of all is the Hoover dam just 25 miles from Las Vegasit ’ s tall as seventy story buildingwith base as thick as two football fieldsenough concrete was poured to pave a highway from New York to San Franscicoby blocking the colorado riverthe dam created the reservoir of Lake Meadthere ’ s enough water here to vary the state of New Yorkunder a foot of waterthis is the water that once said the fountains and swimming poolsof Las VegasThe Hoover dam is mostly made ofsolid concretebut even this mamoth monument is vulnerablethe reason lies of the Colorado rivernear the border of Arizona and Utathis is the Glen Canyon damit was created to store water for nearby cities andto generate electricitybut this dam has a major weaknessits spillwayswhich act like an overflow drain on a bathtubif the river level gets too highthe excess water escapes through thespillway tunnels so it doesn ’ t go overthe top of the dambut the spillways can ’ t handle sudden floodsthe threat is high in the mountainswhen winter storms produce unusuallyhigh snowfallthe heavy string runff creates surgingflood watersthey rush head onto the damafter restinig for two centuriesthe gates that control the spillways have collapsedthe water races through seven hundredfeet of tunnels deep inside the damand as it doesit creates a destructive patternlow pressure bubbles form in the waterwhen they popcause supersonic explosions that eatthrough the rock into the damonce special cnocrete ramps prevented this from happeningbut after 200 yeas without humanserosion has taken over the tunnels 600 billion cubic feet of waterburst through the dam in gushes down streamsurge is over 55 feet highit sweeps through the grand canyontoward the Hoover damwhich was built to hold back 45 , 000 pounds of water per square footthis is its greatest test yetthe water pours over the Hoover damsweeping away everything in its paththe colorado river rages at more than 25 miles an hourswamping dozens of dams on its way 18 hours later it reaches the gulf of Californiaand for the first time in centuriesthe Colorado river meets the ocean as a floodnot a streamthe release of the Coloradowill transform this part of north Americafish from oceanwill come to this astowary to spawnA vast march once one of the wonders ofthe Americas will be revitalizedhundreds of species will find new homes asthe river and ocean come bynature is reclaiming the worldIn France , parts of Paris are marsh againin Californiairrigated fields have reverted to desertsand manhattan is a forestas altered rivers return to their natural statesilk creates new landcoastlines changesouth of New Orelandover 200 square miles of swampland re - emerges lost with humans damed up the mississipiour sudden disapperance is affecting the oceans too . once we took 518 millon pounds of fish from the seaeverydaynow with no trollers to catch themfishes live longer and grow biggercarp has trippled in sizegrowing from just a foot or two to six feetmuch larger creaters are also recovering in our absenceWhales are thriving after 200 years without peopleand they ’ ve had a lot to recover frombefore the petroleum industrywhales were a major source of oilfor machines and lampsmost whale huntings declined with humansstarted extracting oil from the groundbut many species remained on the brinkof extinctionfor centuries to comethe reason is large modern shipsin our last 50 years on earththe number of ships worldwide doubledso did the noise they generatedsome of the sounds from these vesslescarried for miles under the oceansas a resultwhales could no longer here each othersmating callsand they rely on sound to find matewhose up to a thousand miles awaywith humans gonewhales mating songs are being heard fromcanada to the caribbeanafter 200 yearsour impact here is vanishingthe oceans once again teems with lifebut on landthere are still relics of humanitythat remainwe built symbols about our powerwhen we ruled the earthbut how long will they last ? it is now 230 years after humans disapperedfew signs remain that an intelligentcreative speices once lived hereone of the grandest is also one of theworld ’ s most recognziable modern monumentsthe Eiffel towerover a thousand feet tall it wasconstructed in 1889 fora world exhibitionand was meant to be torn down 20 years laterbut the french fell in love with Eiffel towerand it became one of the most famouslandmarkes in the worldthis 19 th century marvel ofconstruction was designed by bridge buildersand it ’ s been standing up now for centuriesoutlasting even modern skyscrapersthe ladder structure gives the towerstrength without using much metaland the entire tower weighs just 7 , 300 tonswhen people were still aroundthe Eiffel tower was covered in sixtytons of paint to protect it from the elementsbut 230 years of weatherhas taken its tollrain has split away the paintrust eats away at the towers ironwith every rainstorm the entirestructure erodes and becomes more brittlenow the tower is vulerableeven to moderate windsnormally its support beamscan withstand these winds butnow it ’ s too weak 3 centuries after it builtthe tower comes crashing downParis ’ s landscape changesforevermonuments and buildings can ’ t apapt tothis new worldthere were frozen by the techniques used to create thembut species can evolve as conditinschangehere in the forest of Parisanimals we left behind have adaptedmost of these pigs are descendents of pink pigsthey thrive in the shadow of the ruinedEiffel towerthese feral pigs bread with survivingdomesticated ones to create a heartytough animal with dark furthey are survivors in the new worldwithout useven while the modern world collapsesaround themthose that adapt surviveanother symbol of human ingenuity standson the other side of the atlantichow has it changed in the 230 yearssince we banishedthe statue of libery was built in 1 , 886 of massive copperplatesshe is three years older than the Eiffel towersince humans disappearedsome parts of her are faring better than beforeacid rain used to eat away her skinstripping her one pound of copper every yearpollution coated her nose and cheeks with black grimebut cleaner skieshave led to a cleaner statueliberty skin has benefited fromthe absence of humans but other parts of herbody haven ’ tover the centuries a forest has grown uparound her and it ’ s littered with copperplatesthe plates are as thick as two penniesand can last a 1 , 000 yearsso why is the statue of liberty loosingher skinafter 230 yearsthe statue ’ s arm has finally collapsedif copper is the statue ’ s skiniron bars are its skeletonand like the Eiffel towerthese ironbars have rusted throughthe shoulder bar became too weak to hold upthe arm and its torchnow this symbol of freedom is onlyvisible to wild lifethe statue ’ s arm and torch were first to fallbut that wast just the beginningmore than 200 years have taken their tollon some of our most iconic monumentsit ’ s only a matter of timebefore they disappearforeversigns of the human species are becomingharder to find in north Americathe eastern half of the continent iscovered by immense forestswithout us to cut them down trees aregrowing 90 feet tall and blocking the sunlightbut the trees do more than tower of suburbs and roadsthey bury themafter 230 yearsfalling leaves have created three feet ofnew soil and cover nearly everythingwe left behindoccasionallyrain swollen streams reveal the remains ofhuman existencethis is all that ’ s left of a wholecenturies after the wooden beams and floors rotted awayplastic from modern houses also litter to the groundthis cell phone is still intactmore than 200 years after the last phone callit may survive for centuriesmost metals have rusted throughbut stainless steel is truly stainlessthis kitchen sink may last for thousands of yearsbut for animals to lastsome need to adaptin the west Caribou and deer roam overmillions of acres former farm landand once againso do the thunderous hoos of bisonstheir herd can grow by 30 percent a yearfrom a species of half a milliontheir numbers are now reaching into the 10 s millionsother creatures also adopt the savannasof the american westthis furry beasts are the decendants ofmillions of beef cattletheir ancestors mated with highland cowsa breed insulated with fur not fathorses evolved here long before humans arrivedand once again they run wild and freein just 230 yearsnorth america has buried human homes andlost some of his most pride monumentsand time doesn ’ t stop 1 , 000 years after every humandisappeared from earththe iron of the eiffel tower is almost goneit has slowly eroded and become part of the senatein New Yorkthe statue of liberty has fallen into the foresther iron skeleton finally gave wayand her body collapsedbut her pedestal still towers above the trees around itmade of solid concrete and graniteit will last thousands of yearsbut time can wipe away all the evidenceof humanityespecially as the world turns coldera new ice age grips the planetgradual changes in the earth ’ s orbittake it further from the sunsnow will stay on the ground in northerncities for two summers in a rowthen a chain reaction causes ice to covermost of the northern hemisphereit will stay here for the next 200 , 000 yearsonce again glaciers travel south andeventually reach manhattanthey will grind down what ’ s left of the statue of libertyand any other signs human civilization left in the northbut there is one place our imprint will remainindefinitelythe moonunlike earththe moon ’ s landscape changes very slowlycraters more than 4 billion years old arestill preservedalong with some human artifactsa car , a television camerathe only reminders of the human speciesthat will last for millions of years and aren ’ t even found on earthplanet earth is 4 . 5 billion years oldin that context human civilization isjust a blink of an eyeit took us 10 , 000 yearsto cut down half of the world ’ s tallest forestsbut after we disappearedthey grew back in just five hundred yearsonce we used half of all fresh water andchanged the course of half of the world ’ smajor riversbut some dams were washed away in just 200 yearwe pumped 13 . 5 billon tons of carbon dioxide intothe air each yearbut in just couple hundred yearsplants and oceans were scrubbing the earth cleanit took just over a century for our major citiesto start crumblingfor forests since swamps to cover up what used to beconcrete and asphaltthe planet was even able to handle thenuclear legacy we left behindafter we disappearedthousands of tons of radioactiveparticles were releasedbut nature was able to bury most of itand some animal species are not only survivethey thriveearth is resilientin timeit cleaned up every mess we left behindall we have to dowas get out of the way