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As Alaska’s permafrost continues to thaw, scientists are detecting signs of microscopic life that has been frozen for tens of thousands of years. These ancient microbes were locked away long before modern ecosystems existed, and their return raises new questions about potential impacts on the environment and human health. Researchers are now closely monitoring the situation as rising temperatures accelerate the melting process.
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00:01Tiny microbes, basically ancient germs, have been frozen in Arctic ice for tens of thousands of years,
00:08just chilling there, since woolly mammoths were still walking around.
00:11And now, scientists think these little guys might wake up again if Arctic summers keep getting longer and warmer.
00:18Yep, you heard right. Zombie microbes. Great.
00:23These microbes have been stuck in permafrost, which is soil and ice that stays frozen solid year-round.
00:30The top layer melts a bit in the summer, but the really old stuff? Those ice age microbes are buried
00:36way deeper.
00:37They only thaw if things get really warm for months, not just a hot day or two.
00:43To study these microbes, the team went down to the permafrost research tunnel near Fairbanks in Alaska,
00:48a long underground hallway 50 feet below the surface, carved right into the ancient frozen ground.
00:55The tunnel stretches over 350 feet and lets scientists literally walk through thousands of years of frozen history.
01:03By the way, while checking out the walls, the researchers also spotted bones of mammoths and bison sticking out of
01:10the ice.
01:12One of the reasons why the researchers went to Alaska was to see how fast these ancient microbes could come
01:18back to life.
01:19Well, they were in for a surprise.
01:21These microbes don't need years, centuries or magic spells to wake up.
01:26Just a couple of months of warm weather.
01:28Once they're awake, they start doing their microbe stuff,
01:32which includes pumping out greenhouse gases like CO2 and methane.
01:36And that's bad news because those gases warmed the planet even more.
01:41This melts more permafrost, which wakes up more microbes, which releases more gas.
01:47You get it.
01:49Basically, it's a nasty climate loop.
01:52Anyway, when scientists went down into the frozen tunnel to grab chunks of super-old permafrost,
01:58the first thing they noticed was the awful smell.
02:01It wasn't just the stench of an old basement.
02:04It was something has been frozen for thousands of years and is finally waking up bad.
02:11Weirdly, microbiologists were happy.
02:13Such a smell is actually a good sign for them because it usually means tiny creatures, microbes, are still around.
02:20Back in the lab, the team soaked the frozen samples in the water that had a special kind of heavy
02:26hydrogen inside it.
02:27This helped them track what the microbes were doing later.
02:30Then, they put the samples into fridges at three different temperatures.
02:34Cold, kinda cold, and not too cold.
02:37To copy what future Arctic summers might feel like if the warming continues.
02:42For the first month, almost nothing happened.
02:45Even the warmer samples barely changed.
02:47Only a tiny number of microbes started waking up.
02:50Basically, a microscopic trickle of activity.
02:53But a few months later, things got more exciting.
02:57Thanks to the heavy water, scientists could watch how much of it the microbes used to build their cell membranes.
03:03It helped them figure out that the old microbes were making special fatty molecules that might help them stay alive
03:10in freezing conditions.
03:11By the six-month mark, the samples that were stored at the warmer temperatures had transformed completely.
03:17They became more active and started forming little slime layers.
03:21The scientists could actually see these layers even without a microscope.
03:26The whole community of microbes wasn't super diverse.
03:29But those that were active behaved just like modern microbes that live in unfrozen soil today.
03:36In short, those ancient microbes were definitely alive and got pretty energetic once the temperatures were warm enough.
03:45This matters a lot for the Arctic, and for the whole planet.
03:48Because these microbes survive by eating old organic material trapped in the permafrost.
03:54When they eat, they release greenhouse gases like carbon dioxide and methane.
03:59And the Arctic is warming faster than any other part of Earth.
04:03It means that the deep frozen layers might stay warm long enough for huge numbers of ancient microbes to wake
04:09up and start pumping out gas.
04:12Right now, northern permafrost holds about twice as much carbon as the entire atmosphere.
04:18If a lot of that carbon gets released, it could speed up the warming of our planet.
04:24It can lead to dramatic consequences, setting off a whole chain of huge changes and affecting basically everything on Earth.
04:33Extreme weather will start happening more often.
04:35Stronger hurricanes, heavier rainstorms, longer heatwaves, bigger wildfires.
04:40The oceans will rise too, which can flood coastlines and put towns and cities at risk.
04:47Animals, plants, and entire ecosystems can get thrown out of balance, with some species struggling to survive and food chains
04:55breaking down.
04:56People all over the world will have to deal with crop failures, water shortages, and damaged homes or infrastructure.
05:04Let's get back to our zombie microbes.
05:06The thing is, the study only looked at them in one place in Alaska, but there's a massive amount of
05:12permafrost all over the world.
05:14In Alaska, Canada, Siberia, and many other places.
05:18And microbes in different regions might behave differently as things warm up.
05:23Scientists still have tons of work to do to figure out what's coming next.
05:28I bet you're questioning yourself.
05:30Could ancient viruses infect us?
05:32Well, most of the ancient microbes frozen in permafrost are totally harmless.
05:37They're like old bacteria that only care about messing with other tiny organisms in the dirt.
05:43But scientists worry that a few of these frozen germs might be the kind that can infect people, animals, or
05:49plants.
05:50And if that happened, our bodies probably wouldn't recognize them at all.
05:54Because they've been frozen since mammoths existed.
05:57Basically, there's no immune system cheat codes for us.
06:01The risks of this happening grow for a number of reasons.
06:05For one thing, the Arctic is warming almost four times faster than the rest of the planet.
06:10Longer summers, plus hotter temperatures, mean more permafrost melting.
06:14So, more ancient stuff is waking up.
06:18Plus, people might start digging more around there.
06:21Companies will mine more, drill for oil, and ships can travel new routes.
06:25All this activity tears open ground that used to stay frozen solid.
06:30This increases the chance that someone, or something, comes across some ancient germ that just woke up.
06:37What would actually happen then?
06:39We might run into different zoonotic diseases.
06:43Basically, germs that jump from animals to humans.
06:46This already happened once.
06:47Thawed reindeer carcasses released anthrax, a rare and serious illness which then infected people and animals.
06:55Luckily, we do know how to treat anthrax.
06:58But what if something even older wakes up?
07:01Besides, our immune system might have zero defense.
07:04If a virus hasn't been around for tens of thousands of years, humans today would be like,
07:09uh, what is that thing?
07:11No antibodies, no memories of it, nothing.
07:15But the scariest part is that we don't know what's hiding down there.
07:19Scientists think permafrost might be storing trillions of frozen microbes,
07:24many of which we've never seen before.
07:26Some might be boring, and some might be super dangerous.
07:31So what if one such virus finally thawed out?
07:35The world would be dealing with a disaster no one has ever seen before.
07:39This wouldn't look like a normal outbreak.
07:42It would feel more like something out of a horror movie.
07:45First, the virus would be totally new and our immune systems definitely wouldn't recognize it.
07:51That means the virus would spread crazy fast, jumping from person to person.
07:56No one would know what to expect.
07:58It could cause weird illnesses, sudden fevers, or even something way more dangerous.
08:05Stuff as scary as the diseases people faced in old times.
08:09Scientists digging in permafrost already look for traces of those ancient diseases.
08:14So it's not impossible.
08:16Once it escapes, the virus wouldn't stay local for long.
08:19With people traveling everywhere and companies rushing into the warming Arctic for mining and shipping,
08:24the infection could go from one small Arctic village to major cities all over the world within days.
08:32Hospitals would fill up instantly and doctors and nurses would run out of supplies.
08:36Businesses would shut down.
08:38Food supplies could crash if the virus hit farm animals or crops.
08:42Shipping and travel could freeze completely.
08:45Fear and panic would spread around the globe almost as fast as the virus itself.
08:51There'd be no vaccine and no cure.
08:54Because no one has ever seen this virus before.
08:58Scientists would have to start from zero.
09:00In short, a zombie virus outbreak would be totally unpredictable.
09:05And the modern world is certainly not ready for it.
09:13Deep under Tennessee, massive worm-like drills are about to carve out a tunnel that should turn an hour-long
09:19traffic headache into a 10-minute joyride.
09:22It could be one of the craziest US tunneling experiments in decades.
09:27But on the other side of the planet, Europe and Asia are actively testing the Hyperloop,
09:32the vacuum tube technology that seems out of this world.
09:37These are two totally different ideas, but they have the same goal.
09:41To make sci-fi travel a reality.
09:45For the first vision of the future, we have to focus on Nashville.
09:49The story here is about a blueprint for something called the Music City Loop.
09:54It's a proposal for a private paved underground highway meant for Tesla vehicles.
09:59The whole idea is point-to-point travel.
10:02You get in, pick a destination, and go straight there without stopping at every station.
10:07You can already ride a limited version in Las Vegas around the convention center.
10:12Nashville is supposed to be the city-scale test.
10:16The proposal is a direct underground link between Nashville International Airport and downtown.
10:22The new transit system is supposed to reduce a 9-mile 40-minute trip to just around 8 minutes.
10:28If they pull this off, the experience should be truly futuristic.
10:33You hop in a car at the terminal, drop into a tunnel barely wider than the vehicle itself, and shoot
10:38through a pressurized tube.
10:40You bypass the gridlock, ignore the stoplights, and arrive at your hotel before people on the surface have even merged
10:47onto the highway.
10:49That all sounds amazing, but how close are we to this reality?
10:53The technology technically exists, but it has some massive issues.
10:58The system in Vegas is simple, and it uses real drivers.
11:02To hit that 8-minute promise in Nashville, the cars can't be driven by humans.
11:06They'd have to drive themselves bumper-to-bumper at highway speeds inside a tunnel barely wider than the car.
11:12In a space that tight, human reflexes aren't fast enough.
11:17One hesitation or malfunction, and the entire system turns into a traffic cork.
11:22So, we need automated driving systems or really cool robots.
11:28But before we worry about AI-driven vehicles, there's one other issue.
11:33The real problem isn't the tunnel. It's the ground itself.
11:37Large parts of Tennessee sit on limestone, a rock that slowly dissolves like a sugar cube in water.
11:44Over time, that turns solid ground into something closer to Swiss cheese, filled with hidden caves and empty pockets.
11:52That's a problem for any tunneling project here.
11:55When a drill hits one of these hidden voids, it doesn't just slow down.
11:59It can suddenly break into the open air. Water can rush in.
12:03The machine can lose support beneath it.
12:06Tunneling here becomes a real-life game of Minesweeper.
12:10One unfortunate turn, and the machine can fail and sink.
12:14Even worse, the collapse can travel upward, opening a sinkhole at the surface, right in the middle of a busy
12:20city street.
12:21But if the ground is this dangerous, why build this in Tennessee?
12:25The reason is simple. Nashville is in the middle of a massive traffic crisis.
12:31It's one of the fastest-growing cities in America, and the surface roads are already at their breaking point.
12:37The city is desperate enough to try anything, even if it means drilling through a geological minefield.
12:44Engineers see Tennessee as the ultimate final boss for tunneling.
12:48If they can prove that this high-speed system works in limestone full of hidden caves, they can prove it
12:54works anywhere on Earth.
12:57It's a high-stakes bet.
12:59Solve Nashville's gridlock, or watch a multi-billion dollar project disappear into a sinkhole.
13:05But while Americans are busy fighting the ground, other parts of the world are trying to avoid it altogether, and
13:12basically fly through the air.
13:14This brings us to the second vision of the future, the Hyperloop.
13:19For years, experts rejected this concept as too complex, but development didn't stop.
13:25In fact, right now, test tracks in China and Europe are running successful experiments that are breaking speed records.
13:32Here is how it works.
13:34When you stick your hand out of a moving car, you feel the air push back.
13:38The faster you go, the harder it fights you.
13:41At extreme speeds, air becomes a solid wall.
13:45That invisible wall is what limits how fast trains and planes can go.
13:50The Hyperloop solves this by cheating.
13:53You build a sealed tube, suck all the air out to create a vacuum, and levitate a pod inside using
14:00magnets.
14:01With almost no air and no wheel friction, the pod doesn't really roll anymore.
14:07It glides through the tube.
14:10China is currently leading this race.
14:12A state-owned contractor recently sent a pod through a low vacuum tube at 387 miles per hour.
14:20That's faster than the Shanghai Maglev, the fastest train in commercial service.
14:24And they aren't stopping there.
14:27The goal is to hit airplane-like speeds.
14:29But achieving those high-speed numbers isn't what's holding this technology back.
14:35For a long time, Hyperloop could only go straight, so networks were impossible.
14:40However, recently, engineers in the Netherlands found a way to switch lanes in a vacuum tube,
14:46bending what was once a single highway into a blueprint for a continent-spanning web of travel.
14:54It might sound like a small thing, but it's a major breakthrough for the whole industry.
14:58The European side has big ambitions.
15:01They're sketching out a massive network that looks like a subway map stretched across an entire continent.
15:07The goal is a web of vacuum tubes spanning more than 15,000 miles and linking around 130 major cities.
15:16The idea is to make short airplane flights unnecessary.
15:21You could live in Berlin and work in Paris and travel from place to place quicker than dealing with a
15:26downtown rush hour.
15:28In Switzerland, they're testing something called the Infinite Loop, a circular track that works like a hamster wheel for the
15:35pot,
15:35letting engineers simulate long-distance travel without building a massive straight tube.
15:41India is also building its own test tubes with plans aimed at connecting large cities like Mumbai and Pune,
15:48and turning a miserable three-hour drive into a 25-minute trip.
15:54It all sounds like the future is already here, but there's a reason we don't see hyper-pooling pods around
16:00already.
16:00The engineering problems are huge.
16:04One of the biggest problems is the sun.
16:07When metal heats up, it expands, and over hundreds of miles, even sunlight can make a steel tube stretch.
16:14That's a serious issue when you're trying to keep a pod zooming through a perfectly aligned tube at super-high
16:20speeds.
16:20Engineers basically have to create flexible sections that let the tube move without messing up the vacuum seal.
16:28And then there's safety.
16:30A Hyperloop tube is basically a spaceship stretched across the ground.
16:35Inside, there is almost no air.
16:38Outside, normal atmospheric pressure is constantly trying to find its way in.
16:43If the tube is damaged by an accident, a structural failure, or even debris, the air does not slowly leak
16:50inside.
16:50It explodes inward.
16:52That sudden rush creates a pressure wave that races down the tube and slams into everything in its path, including
16:58the pod itself.
17:01That's why Hyperloop safety has more in common with spacecraft engineering than traditional rail.
17:07Failure here is not gradual. It's instant.
17:11So who's more likely to win this battle in the near future?
17:15In the short term, the tunnel approach is more likely to win.
17:18It's still cars and tunnels, just faster.
17:22Even if the plan gets scaled back, parts of it can still be built and used, which makes it way
17:27more likely to show up first.
17:30Hyperloop is the opposite.
17:31The payoff is bigger, but it depends on multiple hard problems being solved at the same time.
17:37Perfect vacuum tubes, reliable switching, and safety systems that can handle worst case failures.
17:43One weak link can shut the whole thing down, so it's harder to roll out quickly.
17:49Either one could change how we travel.
17:51Either way, the goal is simple.
17:53Kill the commute.
17:55So what would you trust more?
17:56A deep tunnel carved through rock?
17:59Or a vacuum tube above ground?
18:04Miami's luxury towers have everything.
18:06Car elevators, rooftop pools, celebrity neighborhoods, and something completely unexpected called gradual descent.
18:14A new study shows dozens of beachfront high-rises are slowly sinking into the ground.
18:20Just a couple of inches over a few years and still moving.
18:23What's going on?
18:25And is it going to get worse?
18:26Let's find out.
18:29When you look at a map of South Florida, the city of Miami is mostly on the mainland.
18:34Just off the coast lies a long barrier island.
18:38That's Miami Beach.
18:40The stretch you see in most drone shots and travel clips.
18:44Fancy cars, the beach, the clubs, the glass towers right next to the water.
18:48That's all on this island.
18:51But it didn't always look like that.
18:53For a long time, this area was mostly older hotels and simple apartment buildings.
18:58As prices went up and richer buyers started chasing ocean views, developers began knocking those down and putting luxury high
19:06-rises in their place.
19:08Floor by floor, that island turned into a narrow wall of glass facing the Atlantic Ocean.
19:14Now, here's the problem.
19:16Miami Beach sits only four to five feet above sea level.
19:20That's barely enough height for comfort.
19:23Each fall, king tides push water up through drains and across certain streets on bright, clear days.
19:29The flooding sometimes gets so bad that locals could kayak through parking lots for fun.
19:34That might sound like a funny video, but for researchers, it raised a serious question.
19:40Could the same landscape be shifting beneath the towers too?
19:43Some buildings had already shown signs of movement, and the question became whether the ground itself was still settling under
19:50all that concrete and steel.
19:52To find out, scientists used a method called INSAR, which stands for Interferometric Synthetic Aperture Radar.
20:00It works by having satellites scan the same spot on Earth over and over using radar to detect tiny changes
20:06in elevation.
20:07It's like watching a tower in slow motion from space, tracking whether it holds steady or slowly sinks.
20:14Those scans stack hundreds of satellite passes over the same balcony corners and roof edges.
20:20It's the same kind of radar NASA uses to track volcanoes and ground shifts.
20:24With enough images, researchers can spot motion as small as the thickness of a credit card.
20:30Between 2016 and 2023, they focused on this section of coastline from Sunny Isles to Miami Beach.
20:38The data showed that at least 35 high-rise buildings had moved downward over that period.
20:44In some cases, the ground had dropped just under an inch.
20:48In others, it was closer to three.
20:50That may not seem like much, but over a short time, and in structures this heavy, it means something's off.
21:01These weren't new buildings under construction.
21:04Most were already finished, which makes the continued movement unusual.
21:08In theory, they should have settled and stopped, but they didn't.
21:12So what exactly is making the ground sink under these towers?
21:16Let's look underground, specifically right under these nice-looking buildings.
21:22Beneath the island is a mix of sand and Miami limestone.
21:25It is strong enough to build on, but it behaves more like hardened coral than solid mountain rock.
21:32Water moves through it, pressure moves through it, and sometimes the ground shifts in ways engineers can't properly predict.
21:39One possible explanation is something called creep deformation.
21:44It sounds like a villain from a B-movie, but it's actually a slow-motion rearranging of particles under constant
21:51pressure.
21:53Imagine parking a heavy truck on soft ground.
21:56It makes little dents right away, but if the truck stays there for a long time, those dents slowly get
22:03deeper.
22:04The ground keeps squishing a tiny bit at a time.
22:07That slow squishing is what might be happening under these buildings.
22:12But it's not just the weight. Construction itself can wake the ground up.
22:17Piledrivers, excavation, and heavy machinery can shake the sandy layers enough that older buildings nearby start shifting again.
22:25The study also found that some of the newer towers showed stronger movement overall, likely because the soil beneath them
22:33was still adjusting after recent construction.
22:36And then there's the water.
22:38The limestone underneath acts like a sponge, soaking up water from the ocean below and the rain above.
22:45When that water moves around, it quietly eats away at the rock and shifts the sand that holds everything up.
22:52That's how the ground slowly loosens.
22:55So, we have a spongy ground, heavy buildings, and the constant shaking from construction.
23:00Plus, water flowing through the rock.
23:03Over time, all of that adds up.
23:06It presses down just a little at first, then a little more.
23:11We're only talking inches, but even small uneven shifts can be enough to make engineers nervous.
23:18So, what does this mean for the buildings and all the people making social media reels?
23:23Probably and hopefully nothing.
23:26At least, not tomorrow.
23:28We're still far away from disaster movie scenarios.
23:30Structures won't topple over.
23:32There won't be sudden sinkholes swallowing cars.
23:35It's not how it works.
23:37But this problem does raise some eyebrows, especially after what happened just a few miles north in Surfside.
23:43In 2021, the Champlain Tower's south partially collapsed.
23:48It was a huge tragedy that Miami will remember forever.
23:52That disaster didn't happen just because the ground moved.
23:55Issues kept piling up slowly over the years.
23:58Engineers discovered cracks, rust, and bad drainage.
24:02The building was falling apart from all sides.
24:04And then, it was too late to do anything about it.
24:07But since then, the city has been paying more attention.
24:11Engineers are reassessing older buildings near the coast.
24:15And local officials are pushing for stricter inspections.
24:18The radar data doesn't mean a building is unsafe, but it can be an early warning.
24:24A signal that something deserves a closer look.
24:27For residents though, there's a catch.
24:30Right now, there's no rule that says developers or building managers have to monitor ground movement with satellite scans.
24:36The study didn't involve teams going inside or taking core samples.
24:40It was just a space-based scan from above.
24:43If you zoom out from the sinking tower drama and look at that long strip of land,
24:48it's already one of the weirdest pieces of real estate on the planet.
24:51A good portion of the Miami lifestyle is literally fake land.
24:56Star Island, Palm, Hibiscus, the Venetian Chain, and a bunch of other spots started as sand at the bottom of
25:04Biscayne Bay.
25:05The bay was dredged in the 1920s.
25:08The sand was piled into islands.
25:10And developers turned those piles into celebrity neighborhoods where houses now cost tens of millions of dollars.
25:17Some of the richest people on Earth treat this area like their private game board.
25:21Fisher Island, just off South Beach, currently has the most expensive zip code in the United States,
25:27with a median listing price in the eight-figure range.
25:30A bit farther up sits Indian Creek, known as the Billionaire Bunker.
25:34It has only 41 houses, its own police force, and neighbors like Jeff Bezos and Tom Brady.
25:41One empty 1.8-acre lot there was recently listed for around $200 million, just for the dirt and the
25:49view.
25:50And all of this floats along the edge of Biscayne Bay, next to an actual national park full of beautiful
25:58marine creatures like dolphins, manatees, and sea turtles.
26:01More than a hundred bottlenose dolphins live in and around the bay year-round, racing past boat docks and tall
26:09condos like they're extras in someone else's movie.
26:12So, what happens next?
26:14Engineers keep scanning, inspectors keep checking, and everyone online keeps posting drone shots like nothing odd is happening under their
26:22feet.
26:22That's Miami, a strange blend of glamour and physics that never quite behaves.
26:28It's not a crisis, it's a maintenance routine.
26:31As long as the people in charge pay attention to quieter signals like slow dips in elevation, or small structural
26:37changes, the skyline should hold.
26:39Maybe it settles a bit, maybe it stretches and groans.
26:43Now that engineers and scientists are aware of this issue, they can prepare and propose solutions.
26:49Until then, the towers will still be up, and the bay will still shine bright.
26:53The whole city will keep drifting in its own style, just slightly downward.
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