How Many Times Has The Earth Experienced An Extinction Event? | The Next Great Event | Spark

[@JonnoPlays]

I have KZbin Premium, but thanks to Spark I still get to watch ads.

[@bigmoe83]

🤣🤣😂

[@johnathonsnape-mclean3457]

At least i can skip these ones 😂

[@Rogue-7.62]

Indeed, I am paying for premium as well. So why are we seeing these damn ads on this channel?!

[@ryanroberts9440]

I think spark feel their viewers actually enjoy adds 😂😂

[@2TONESKY]

Ooh you lucky! More ads, you're clearly blessed

[@TitanicSubGoBoom]

I’m a delivery driver in metro Detroit and our sprawl is getting ridiculous. We are putting Walmart’s and strip malls in every field and forest within 75 miles of Detroit. In the past fifteen years since I started it has been dramatic. I drive past Canadian geese families all day long living around the fake run off evaporation ponds we build around these concrete slabs. These geese have been coming to these specific spots for thousands of years and we paved them over and they eat on the little patches of grass on the side of the road. They look homeless to me I feel so bad for them.

[@You.Tube.Sucks.]

Humans are disgusting. Those poor geese (and all the Canadian geese slaughtered after they dared fly near an airport).

[@DeluxHippopatumus]

That's because no one wants to live in Detroit... so Detroit is trying to run away from itself

[@Ron-oh8lj]

Yes. Same over here in Santa Cruz California

[@GHOSTGHOST-jw1mi]

Same here in San Antonio TX mainly apartments complexes and maybe businesses here and there but mostly apartments complexes big area's that was open land actually looked better back then now. Then in some places they wonder why wild animals are getting closer to homes when it's us pushing out these animals we make a big thing about wildlife and yet yr by yr they're land gets smaller

[@nadianichols953]

Habitat loss is the most dire threat by far for all creatures great and small, on land and sea. It's very hard to watch this happening.

[@matane2465]

"Extinction is the rule. Survival is the exception." -Carl Sagan

[@andrewford80]

Had not heard that one before. Very apt.

[@deeya]

There's just something so bone chilling about The Great Dying. It's like the planet dodged a bullet by a hair's breadth, from becoming a dead rock like Mars.

[@IzzyandShadow]

As Jeff once said life finds a way

[@unclecharliesunholyworldof7145]

Mars scares me. Mars is like full blown colon cancer.

[@soniyasinha3496]

i think humans may cause this one way or the other..

[@panzerabwerkanone]

The process by which Mars lost it's atmosphere and it's water is far different from the Great Dying. Increased output by our young sun, weak magnetosphere stripped Mars of any potential for life as we know on Earth.

[@esshor.]

….why wasn’t the great oxidation event included on this list? The worst extinction event that killed off close to all prior anaerobic microscopic forms of life.

[@blackhawk7r221]

@Praise Jesus, Repent or Likewise Perish Just stop bothering people.

[@whatabouttheearth]

Maybe because the great oxidation event doesn't have fossil evidence

[@blackhawk7r221]

Vol 66 (2016) of Bioscience has the geologic explanation you seek. NASA has a great write up from 2019 on the geo evidence discovered to better prove the oxi event.

[@susmitislam1910]

The colloquially known "big five" extinction events don't include the GOE. All of the big five occurred AFTER complex life emerged. During GOE life was still unicellular.

[@iMORTIsieteVOi]

@@susmitislam1910 makes completely sense to me

[@stretchnj2441]

Imagine all the different species that have ever existed.. Boy would I like to see each one in person.. May life live forever!!

[@adrianmccoy2643]

Humans are next based off logic it's inevitable!

[@Russia-bullies]

Then you better see those alive today,as you probably won’t tomorrow.

[@0anant0]

You don't have to imagine -- just visit the Creation Museum in Kentucky and you can see not only dinosaurs, but also dragons co-existing with humans!!!

[@Benji-vr6bx]

Out of all the creatures that have existed I don't think you'd have time to see them all. %99 of all species that has ever existed is extinct.

[@stretchnj2441]

Would be super cool though! Funny how alot if humans forget we SHARE this planet.. We don't own it.

[@qarljohnson4971]

I am surprised by the low quality of information about the extinction events in this video. PBS Eons and many other KZbin science channels cover this topic much more accurate and concise.

[@cypsaver]

Please consisider Qarl that this documentary is packing 5 extinction events over millions of years into 48 minutes when it could last 48 days.

[@jmarronineto]

I agree. In fact, that's what caught my attention. Little explanation of events and a lot of rambling about cause and effect relationships.

[@EphyDude613]

Still, this is all theoretical... At best it's educated speculation. I'd say it's highly debatable as to the degree of accuracy of ANY documentaries dealing with this topic. I also find it suspect that this particular documentary is pushing the carbon-caused global warming angle, as well as pushing for the genetically modified food in order to weather the next extinction event. They are always using fear to try to push their agendas onto us. "We need to tamper with our food or we'll die from the next extinction event!" Also, trying to compare humanity to the Dodo Bird as far as becoming extinct in a short time, is a really weak argument. Unless we're expecting something to come and hunt us into extinction, I don't see why anyone would seriously bring up the Dodo, lol.

[@johnbannister9212]

Fair enough, and I assume they know the difference between adjectives and adverbs

[@fransmars1645]

We know very little of the particulars of these events. There are some correlations and statements that can be made from the available sources of information towards this. Our brightest minds are trying their best to understand it. If you have any meaningful input, I am yet to see it.

[@KnowledgeCat]

It's incredible to think that this happened on the same planet we're on right now!

[@Prometheus7272]

Not really but sort of

[@merkga]

​@@Prometheus7272yes but no 🤷‍♂️

[@mattycheeze4131]

I disagree 😐

[@geoffreyblankenmeyer9888]

Each geologic period ended with an extinction event. The others were not as severe as the Big Five.

[@gizmo6746]

Special thanks to the camera man who traveled in time to film everything.

[@eddiequest4]

You're welcome. It was fun.

[@jamesleatherwood5125]

rofls!

[@MichaelL502]

Jesus. Haven’t heard this one before

[@tannhauser5399]

@Gizmo - and maybe he was the one of the old mysterious "Sages" who lived for a long time. Maybe even the old Babylonian antediluvian Alulim or Alalngar. You know - from the time before the Flood, a Golden Age of Gods. Yeah, the man was quite good with a camera and commited too. Respect. Quite a balls on that guy to do it. Somebody like Plato, his pupil Aristotle who of course was taught Alexander the Great/Macedon everything he knew, hell even Solon - nobody could hold the camera like that. They all tried and they have failed :)

[@anthonyfellows9013]

Gizmo, we're not doing this joke anymore

[@latheofheaven1017]

13:10. No no no! Lystrosaurus was not the ancestor of dinosaurs and mammals alike. Lystrosaurus was a synapsid, and synapsida is the group that gave rise to mammals. But dinosaurs were sauropsids. The two lineages had already split long before Lystrosaurus evolved.

[@FranBunnyFFXII]

Correction, Dinosaurs were Diapsids. You are right that the Synapsids gave rise to Mammals and that Synapsids did not give rise to dinosaurs. Diapsids are named for the 2 Fenestra on the sides of their skulls, where Synapsids have 1.

[@victor7816]

Glad you caught that too. :)

[@WhirledPublishing]

The "experts" struggle to memorize all those theories ... you have to be really really smart to memorize hundreds of theories.

[@milfinu]

I'm still waiting to see REAL Dinosaur Bones,

[@owenshebbeare2999]

@@milfinu There are plenty. Bible-Belt Sunday School "history" and other mythology is for childhood, grow up, look at the science.

[@michaelclark5626]

The 252 million year old extinction event was associated with the Basalt from the Siberian Traps. Enough Lava came out to cover all the Earth 10 feet deep in basalt. The Antipode was in Antarctica where a very large impact event occurred. The one at 66 million years ago only has enough lava to cover the Earth a mere 3 feet deep. The antipode is the Chicxulub Impact event. Giant impact events fracture earth on the opposite side of the earth. The energy re-focuses at the antipode using reflection, and refraction of energy waves.

[@SteveMan9231]

Leeweeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeec😂😂v

[@geslinam9703]

I get the chills looking at photos of the Siberian Traps. Read a book a few years ago on that event, it was pretty terrifying.

[@michaelclark5626]

@@geslinam9703 If you think about it, the space rock that zapped Antarctica around 252 Ma was a lot bigger than the space rock that zapped Chicxulub at 66 Ma. It made a hole the size of the state of Arizona, and fractured the Earth at the antipode in Siberia, and leaked Lava for millions of years. The Lava was up to 4 miles thick in Siberia. Now that is what I call a Lava flow. But it released so much acidic gasses that the Earths Oceans and land had a 90 Plus percent die off. Acidic Oceans. Fortunately this is a very rare event. Mega Zaps are around 186.6 million years apart. I have often wondered as to why some species survived, when most went extinct. I suspect the ones that were underground, or underwater, or in caves had a chance to survive, but if you were big, and out in the open on ZAP DAY, you got blasted, or cooked, or blown away, literally.

[@carterfrady342]

Even small power outages can freak out small communities because people can’t get things from stores because the stores close down because you can’t pay with card or cash through their systems. People will freak out and lose their minds over the smallest things.

[@YogiMcCaw]

It's not a small thing. In ancient times natural food sources were the energy supply. Drought meant your family had much less energy to survive. Now we use electricity. When that's cut off we do not have our energy supply to survive. The dynamic is the same, even if the energy source is different. Life needs a constant, reliable supply of energy. if that's cut off, death ensues. This hasn't changed since even the first mass extinction.

[@dominicbandu8140]

And when they freak out they buy lots and lots and lots of toilet paper

[@MikeCCO]

I think the Green lady has got her P's & Q's mixed up there, 4:00 Tree roots dont cause erosion to my knowledge, they prevent erosion by keeping the soil there !

[@ayannacollins7405]

I swear I thought the same thing I couldn't really get into it. She looked like she didn't even know what was going on... lol they could have interviewed me instead.

[@Hiii-p5w]

She meant weathering

[@merkga]

​​​@@Hiii-p5wthe weathering of the roots? 🤔😁

[@jandrews6254]

OK she doesn’t know what she’s talking about, or she’s spouting a set piece. Either way, nothing here I’m gone

[@cuddlycholla3438]

Tree roots are very bad for levees, the cause erosion

[@TheAIPre-Human]

The Permian Extinction part forgot to mention the Siberian Traps

[@SciHeartJourney]

I wonder if the asteroid had an effect on volcano activity? 🤔 It seems to me that the Earth is usually in balance keeping volcanoes in check most of the time. It seems reasonable to expect an increase in volcano activity shortly after the asteroid's impact. Like ringing a giant bell.

[@wantsome-zs5sq]

There's been 6 mass extinctions in earth's history and one of them they believe could have been caused by volcano's

[@geslinam9703]

@@wantsome-zs5sq was that the Permian? I think the evidence of volcanic activity (Siberian Trapps) has been connected to that extinction.

[@geslinam9703]

I did read or see in a documentary once that an asteroid could have triggered volcanic activity. Makes sense of if you think about it.

[@rickrictimeishort7278]

was the black hole influence from center of galaxy,as of now

[@sunshinesplace9172]

@@wantsome-zs5sq ​ they legit say that when the asteroid hit, massive green house gasses were admitted into the atmosphere BECAUSE of the volcanic activity after the asteroid struck…

[@Tina-vb4te]

This is the scariest video I've ever seen. My son came home from school saying he will not have children and I took it ,like most, you will change your mind one day. As an adult he tells me he would love to have children but won't because the world will change and he couldn't do that to them. It's heartbreaking truth this video is what he means

[@soupsop]

Its an interesting generation gap. As a teen, I consider this comforting. Humans will never stop fucking shit up, so after accepting our inevitable demise its nice to know what will happen and that earth goes on existing. I think it goes to show how utterly hopeless my generation is- literally being born into the 6th mass extinction i guess we just don't even know what hope is like. More sad than anything.

[@Tina-vb4te]

@@soupsop It is so sad.

[@russelmurray9268]

Great program. Thank you for the research you've done.

[@halsnyder296]

I’m impressed that the nature of plant roots changed so much! Today plant roots are considered to stabilize soil and reduce erosion. I have NEVER before heard of plants increasing erosion. Seems an unsound hypothesis.

[@danbrown4193]

Relative and contextual in understanding. Before there was no plant root system as it grows, develops and evolves it is displacing soil, nutrients and by products. The much better comparison would be what phosphates, nitrates, acid rain and other newly developed erosion conditions are doing to the current long standing normal soil conditions before them. I think at least this is what my layman brain took away from this as I was watching it.

[@Kimdino1]

Today we have lots of unstable loose surface made up of very small particles called soil. Soil will always be subject to erosion and is easily washed away. However, plants limit this by binding the small particles together with their roots so that it is not so easily washed away. Back at the start there was no soil, just very stable rock that did erode but at a very slow rate but it could not be just washed away. The roots broke up into the much smaller pieces that we call soil. So, then the rock could be, and was, washed away.

[@chloerene7858]

Lol I'm sure you know so much better than the thousands of scientists across the globe who have been working on this information for decades. 🤣

[@halsnyder296]

@@chloerene7858 Every report I’ve read, or non-sensationalized video I’ve watched that addresses the subject of paleo erosion states that the rate of erosion was much higher before plant life because the rock was more directly impacted. This is the ONLY video I’ve seen where the converse is proposed. So… I don’t see the “thousands” of scientists you reference.

[@trailguy]

As a kid we learned that the plants helped break up the rocks which enabled minerals to be leeched out by subsequent generations of plants.

[@mrCetus]

How would trees cause extreme erosion and the loss of soil into the oceans? Looking for an explanation.

[@tyrannosaurusflex3698]

If you're looking for an explanation then don't ask KZbin. Ask the internet.

[@demeal]

the erosion could be because land was rockier than it is today, the carbon hadn't been pulled out of the atmosphere and into the earth's landmass to the extent it is now . Leaf litter getting washed into the ocean causing algae blooms causing dead zones is a real thing that is dealt with even today. basically the ocean gets double fertilized

[@dogphlap6749]

Yes, I was concerned about that too. The explanation that the large trees had large roots that broke up the ground which then washed into the sea made zero sense to me.

[@demeal]

@@dogphlap6749 yeah trees are really good at holding dirt together, but get a seed in a crack on the side of a mountain, and, well...

[@rosier5428]

You won’t get one…..these people are ideological purists.

[@MrLeedebt]

Obviously, the Earth has always been on a knife edge. Plus, it is amazing how many changes have occurred. Also, the severity of some of the changes in very short time periods. Tragically, human self-interest will be paid for many times over.

[@steadychasingmoneybands6213]

earth has been changing before us and after us...

[@MrLeedebt]

@@steadychasingmoneybands6213 I agree. However, there is no reason to preclude human self-interest as contributing to change as well. Plus, I was told by one climate scientist that he and his associates have been very measured and restrained. Why? To be over the top is often counterproductive. Indeed, at the last Australian Federal election, it dawned on generations of conservative voters, the seriousness of the situation.

[@MikeTomillo]

@@steadychasingmoneybands6213 Yes but NEVER by us until now!

[@farcydebop]

@@steadychasingmoneybands6213 Earth has changed in terms of geological scale of millions of years eras. Manmade changes have equivalent impact in less than hundred years.

[@cathycassista]

@@MrLeedebt LMAO PLEASE don't be another one of those gullibly niave non self thinking person please!!! The world already has enough ignorance and stupidity in it from most lacking in any type of intelligence self intellectual thought or even any common sense thanks to our dumbing down educational system!!! You all need to stop automatically believing those in power authority or like this host here as all they do is regurgitate the same BS we all have been taught along with the governments own fear mongering propaganda. I urge all of you to do your own research so you all my be better informed instead of a bunch of misleading informants that make comments sounding completely lost!!!

[@acase3235]

I thought root structure help to stop erosion

[@Isawwhatyoudid]

Find a patch of hard dirt or rock - pour a glass of water over it and see how much sediment you get. Now bust up the dirt with a hammer or shovel and pour some water over it. Root structure helps soil erosion now but when plants first started to colonize the land the starting point or square one is not like we are used to it. These were pioneers if you will - now the land has had plant life for half a billion years and you have a variety of plants with varying root structure and ground cover from decaying material. Many of these are the shorter plants, mosses, algae and/or fungi that grow close to the ground.

[@edh3881]

And we also stupidly thought if we give our politicians more of our money in taxes they were going to change the climate. LOL Suckers

[@chrismay25]

Well science changes every 5 years lol. 🤷‍♂️ we still plant trees beside our creek to stop erosion. It works. Trust but verify everything you see. Besides Algae type of plants have minimal root systems. I agree. False statment

[@aarongoodwin4845]

It does!

[@edh3881]

@@aarongoodwin4845 Yeah sure. Like giving them money ever did much good. They get rich and most of us get poorer. But people will certainly vote to raise our taxes for such a idea. Sorry but we are all going to become extinct one day if we pay more taxes or not. And the planet will be just fine.

[@darylb5564]

Watch this again with friends and do a shot every time they um uh probably think or maybe. It’ll be a very short night.😂

[@aarongoodwin4845]

Thanks! Needed a giggle!

[@AstrosElectronicsLab]

It's only a 47 minute video. If one were to do that, after 47 minutes you're BAC level would be well over 1.2!

[@MuscleTeamOfficial]

The next mass extinction event ^

[@atune2682]

unbelievable to think that this happened on the very same earth we are on right now.

[@rickrictimeishort7278]

stay tuned

[@sportyfactss975]

Excellent explanations. I like the explanations

[@jennymichie5175]

More people need to see this documentary. The most clear and concise recordings of cause and effect. I'm no eco-warrior...but we need to CHANGE. This made me cry and it's humbling. Thank you for being here to educate. Today, I don't want to bring a child into the world, because I'm scared..And people are doing..........not a lot. It's terrifying.

[@chuckbirdnz]

I agree we need to change but the change has to be done logically and not hysterically. There was no mention of using nuclear power generation.

[@OnideusMadHatter]

You just want to feel important. There's nothing wrong with the planet and there never is. At one point in our history around 90% of ALL LIFE was completely wiped out. It always comes back. Maybe stop thinking that the earth is yours forever. I mean, nothing exists forever, at least not physically.

[@jennymichie5175]

Not a pro, but humanity playing God is only going to get us so far. We can't change what natural science dictates, with that I fully agree. The worry that I have personally is the impact were having on the speed of change. That is the part that's unprecedented.

[@jennymichie5175]

@@OnideusMadHatter Raw nerve? It's upsetting when stuff dies. Maybe not the mosquitos that keep biting me coz of THE MASSIVELY OVERCOOKED HEAT AND HUMIDITY. But that's just my opinion. Just saying I'd rather that life stays as comfortable as possible on this planet for as long as possible. In no way does that make me feel special or important. Only another one of the (around about) 7 billion people trying to exist here.

[@coryeide6685]

Comments like yours are the very reason hysteria is around Be logical nit looney

[@ryanstrasser3695]

The odd thing about this... is its appeal to how we should perceive change over time - though it's the exact opposite of a rational perception regarding change over time.

[@tharunkumarvk99]

What a wonderful documentary

[@AstrosElectronicsLab]

Not really...

[@Rob337_aka_CancelProof]

A constant state of flux always changing is the norm and I find it very interesting that people usually think of geology as the big determining Factor for Global change when there's another one that's at least as effectively as geology is when it comes to making global environmental changes and that is biology which is seldom discussed outside of the scientific community and I think we should maybe do something about changing that and bring biology into the public realm of discussion.

[@glennnielsen2489]

Far better documentaries on this subject out there.

[@ThinkingDoesMakeMeImportant]

1st thing I notice about this channel is that there are no references linked in the description of the video.🤔

[@WhirledPublishing]

To complain about missing links is to tell us you don't know how to type in your search words and hit enter.

[@ThinkingDoesMakeMeImportant]

@@WhirledPublishing Unless the channel is lying and have no evidence.

[@ThinkingDoesMakeMeImportant]

@@WhirledPublishing Guess you weren't smart enough to think of that 1.

[@WhirledPublishing]

@@ThinkingDoesMakeMeImportant This channel regurgitates unsubstantiated claims that have been exposed as idiotic nonsense by thousands of independent sources - and apparently you don't know how to type in search words and hit enter.

[@ThinkingDoesMakeMeImportant]

@@WhirledPublishing Apparently this channel doesn't know how to search for evidence and then post it.

[@anusuyadevi8090]

I love this video

[@charlesfleeman1765]

One of those videos that one should watch... and then watch again immediately.

[@1iota1420]

4:19 large trees dug roots causing erotion... roots dont cause this, wind and water do, roots help hold ground not release it

[@chuckking4188]

When roots move into the soils around the plants and trees, it loosens up the soils and then the soil is easily moved.

[@accessaryman]

@@chuckking4188 it may move but then is replenished with rotting foliage, and increasing the soil around the forests floor, making more area for new plants, , simple science

[@christopherlane5238]

@@accessaryman LOL omg lol Being completely wrong, and then making the statement "simple science" LOL omg thank you for the comedy.

[@atossaresident9440]

@@christopherlane5238 funny how you are the only one laughing

[@juliusseizure3039]

Just because someone has a degree doesn't mean that they are right. Science is also a process of learning, not a conclusion of bulshit biases. Basically you're one of those climate alarmists that doesn't question the narrative.​@chuckking4188

[@rebeccaedmonds6104]

That was very informative and helped me realise the greater need for humans to work together.

[@harreits]

This clip makes Humans guilty of co2 mass, this is not the case, it is good for green and tree! there may even not be enough co2 for alle green to grow! science from real climatscientists!

[@booklover6753]

@@harreits Wrong. Psuedo science.

[@harreits]

@@booklover6753 nope, real science of the climate shows that there is nearly enough co2 on earth, the people are only for a very small percentage quilty of climate change, one vulcano has more co2 then mankind in a few years...

[@harreits]

This cannot be helped by human aid how many people you want to get together it will only be 3-4% of need...nature and universe keep you tight.

[@harreits]

@@booklover6753 you like books, so read the science books! You are ignorant to the great all.

[@sage12389]

Guy said a brief ice age at first extinction event, turn out a million year.. :D

[@chronic2001n]

10 min of actual history of extinctions. 38min of climate change today...Ugh. Dislike.

[@russelmurray9268]

This program is about the corolation between what brought about past extinction and what is happening today. We are at the end of the 6th mass extinction

[@nwofoe2866]

the basic presumption at the video beginning is that man can actually do something about a polar shift, inbound asteroid, etc. Do I need say more?

[@ice9594]

Sure he can. Didn't you watch the movie Armageddon, mate? (Just kidding.) But Mr & Mrs Globalist want us to believe the negative effects of their phony "Climate Change" is caused by human activity, so they can suck carbon taxes out of us & limit our lifestyles (housing, transportation, energy usage, etc.). In reality, only a small fraction of it is caused by man. Most is driven by solar activity/cycles & other stellar influences. The incoming Planet X (aka Nibiru) of the small Nemesis star system, which passes ours each 3,600 years, is causing much of the big increase in Sun/solar system/Earth changes we've seen in the past few years (volcanic eruptions, quakes, sinkholes, meteors, wild weather/storms). These will become more frequent & intense until the planet's flyby of ours in the next few years, which will be a HUGE disaster-fest! NASA discovered & publicly announced PX in 1983 then went dark about it. Elite/govts/military have been prepping but keep the Little People in the dark to prevent panic. Stay safe. - PX researcher 6 yrs

[@chaddeez8446]

We're better off doing what Bill Hicks said and not Bill Gates.... and hoping for the best.

[@johnathan6642]

Except that if you actually watch the rest of the documentary they're talking about the actual issue. WE are the factor driving the next extinction. It's unlike any mass extinction before, in that for once there *is* something we can do about it.

[@NoName-qs6ei]

@@johnathan6642 Thats a load of shet

[@johnathan6642]

@@NoName-qs6ei i mean you can believe that if you want but if you look at the rate species are dying if we don't stop then we are literally going to cause the definition of a mass extinction. 96 percent of recent extinctions are attributable to humans. We spell death for any megafauna that exist in the area. The vast majority of biomass on earth is humans or livestock. I'm not even talking about global warming because I know that some people don't believe in it. I'm talking habitat loss, pollution, and hunting. Things that all solid evidence can agree with.

[@carolmiller5713]

Excellent explanations of earth’s past & where we are now. New rock type made of plastic says it all for modern human life.

[@rollotomassi6232]

"New rock type made of plastic" as George Carlin put it; Whose to say the purpose of humans this go round isn't exactly that...Plastic Rocks! Who knows what good things the next life forms make with billion year old plastic rocks.

[@scottleft3672]

Dust to dust.

[@ZMacZ]

Also, when plant life is overabundant, the atmosphere also gets to high a concentration of oxygen. But with that comes low CO2, which is a requirement for most all plants, which then die off since there's no food for them to continue growth. As they die off, the bacteria consume those and you'd get lts of CO2 again, and this can happen rapidly from a geological point of view, like every million years or so.

[@williamthran8325]

We don't any of this to be fact. This whole video is theory.

[@Skillfuljoe23]

Someone here asked if the asteroid that caused the dinosaurs extinction may have had an effect on the volcanic activities we experience in our time today. I think that's a very reasonable question! It's certainly not beyond the realm of possibility 🤔🤔

[@breynolds4608]

No

[@Captain_Brown_Beard]

@@breynolds4608 Yes

[@jays2551]

what? no. entirely unrelated

[@Skillfuljoe23]

@@jays2551 I said it was a reasonable question and not impossible. I never said I was certain 🤦🏽‍♂️ of it.

[@Captain_Brown_Beard]

@@Skillfuljoe23 And I said yes.

[@philliprobinson7724]

Hi. Great work, especially the very long-term correlations between CO2 levels, temperature, and ice-melting. However there's one aspect of temperature rise I've never seen covered on a climate video, and that is "how much extra water evaporates in the tropics for each degree of temperature rise?" Obviously this is important, because if more water evaporates in the tropics than melts at the poles, the sea levels will go down, not up. Humidity, rain, and cloud cover will also increase, the latter reflecting away sunlight which will lessen global warming, but the humidity will increase it, like a heat trapping blanket. A major factor can be seen with a glance at any globe of the Earth: There is ten times as much area for evaporation in the tropics as there is area for melting at the poles. So which has the most powerful effect on sea levels, or have we reached a natural balance? I'd suggest that until we have some hard our computer models are no better than educated guesses. Confounding things further is that we use Mercator's two-dimensional projection of our three-dimensional globe, and this grossly distorts the relative sizes of polar areas and tropic areas, making the former look far larger than they are, and the latter smaller. We see a full width band of white at the top and bottom of the map and tend to panic when considering it all melting. It's more illusion than substance, but it still conditions our thinking with an unhelpful distorted perspective. A simple experiment could help sort this "melting versus evaporation" equation out. Make low flat-topped forty-foot triangular glass-houses, modelling the correct size dimensions of segments of the earth between the pole and tropics, and partially fill each with salt water. The bottom of each segment will vary according to the known contours of the sea floor, so the total quantity of water in the segments will be proportional to the oceans as well. Each triangle's apex, representing the polar area, would be chilled to the average Arctic or Antarctic temperature. These apexes will become mini- icecaps. The much wider bases of the triangles, representing the tropics, are heated to sea temperatures at the equator. Evaporating water at the base would migrate to the cold apex, and condense, as happens on earth now. This experiment could accommodate ocean currents, but it could not model weather air movements very well. It could at least give us a crude base of real-world knowledge. Computer models alone are not good enough, especially when they don't include measurements of evaporation. (Garbage in, garbage out.) Next, raise the temperature one degree C both at the poles and equators, then observe and measure. And so on. An experiment like this (but hopefully more sophisticated), could determine whether the hypothetical "tipping point" actually exists, and at what temperature it kicks in if does. Thanks for a very thought-provoking video, keep up the good work. Cheers, P.R.

[@stevewildeagle965]

Some Great points put across here, and very well delivered.👏🏼 Also the eastern Antarctic Peninsula Ice Sheet has expanded since the start of the 21st century, also there's been an increase in Sea ice.

[@philliprobinson7724]

@@stevewildeagle965 Thanks Steve. The ice-sheets expand and contract with the seasons, but the thickness of ice is the main concern. The climate change videos always focus on a dramatic spring collapse of ice into the sea, and most people are unaware this is a visual form of "cherry picking the data". That's not to say there's nothing to worry about. I'm more concerned about my poor grammar. In the second paragraph I said, "until we have some hard our computer models---". I meant to say "--have some hard DATA our---". Also, there was a missing "IT" in my last paragraph. If I cannot communicate my thoughts accurately I'm doomed to drown alone in the rising tides of ignorance. Toss me a life-raft if you get time. Cheers, P.R.

[@stevewildeagle965]

@@philliprobinson7724 Your information was so well delivered, and informative I became way to involved with taking in all that data. You'll never be doomed unless you accept defeat, and you sound like someone that'll just Ascend to new heights, rather than sink to lower vibration. Love and Light Steve Wild Eagle ♥️🌅🦅

[@philliprobinson7724]

@@stevewildeagle965 Thank you for your kind words Steve. My posting was way too long and many people wouldn't bother reading it all, but the truth is, real science needs more context than short simple "sound-bites". Please note, I'm not a climate change denier, but rather that we need to honestly look at all possible angles to get the best grasp on the issue. Cheers mate, P.R.

[@Sord7aiL]

❤

[@snillum5004]

What humans do to earth is exactly how we describe and fear what aliens would do if they came here..... I think that fear is memory of what we did long before anyone can remember or has been recorded in history or forgotten.

[@davidbonner2803]

Aren't the "trees" mentioned at the beginning of the film the fruiting bodies of Prototaxites , one of the earliest terrestrial fungi? Don't miceilia (sp) hold soil thus help prevent erosion?

[@MagMaybe]

Crocs survived!!!! There used to be so many different types and now we are limited...

[@michaelcap9550]

The Permian Extinction part forgot to mention the Siberian Traps. Hmmmmm.....

[@latheofheaven1017]

Yeah, it was kind of weird wasn't it?

[@jakegilbert8116]

Solid choice of experts/ professionals to opine on this topic. Thank you! Well done and pretty solid! Thank you again ❤

[@heatherstewart9300]

You've got to be kidding.

[@AstrosElectronicsLab]

Are you serious?

[@ivanbass538]

Totally agree. Scary to see the other replies. Glad to see I'm not alone though.

[@Cypher791]

Amazing to think that this happened on the same planet we are on right now! 🌎👀

[@fred_2021]

Never considered that 'extinct' might be chilling. After all, we wouldn't be here without it. Oh, well maybe that's the point.

[@chindodawg]

..and we won't be here with it

[@JakeFields92]

It makes me very sad to know what we have done to this good earth. Our time will come.

[@davidhenderson7355]

Have said this for many years extinction six we are into it and we wont stop it

[@KelliAnnWinkler]

Whenever the next extinction comes along is completely out of our control. We're just along for the ride.

[@ChadSimplicio]

We can try to put in all kinds of mitigation measures, but ultimately, Mother Nature will put things in motion that decimates humanity, if not render it extinct.

[@Blue8132]

the trueth is...MUST decimate humanity. We developed to a status that we have no real thing that keeps us in check...we created maybe our own Extinction event

[@jessbellis9510]

Actually it's more likely that humanity will wipe itself out. We have already put in motion the most sudden increase in global temperatures, the most sudden decrease of species variations, and the quickest destruction of forests. If humanity could truly work together, we'd be able to harness the power of volcanoes for energy and prevent super-eruptions. Sadly human greed and petty disagreements over religion & ideologies have put us on the path to annihilation.

[@saphired02]

@@Blue8132maybe not, maybe were supposed to start on earth and move to a another planet.

[@marcoss6212]

@@Blue8132 Hardly we created our extinction, we are just a grain of salt on the whole existence of the earth, if you watch the whole video, 5 extinctions, all cause by the same reason, every so many millions of years, we didn't created, and will happen again regardless of what we do, at some point in the future, we will be just a nuance to the planet and will shake us off as it did with all the other species in the past.

[@marcoss6212]

@@saphired02 I beg to differ, by the time we find another planet and ship the first group out of here, it will be so far away that nobody will survive the trip, we are from here and we will die here.

[@nelchid]

5:17 Didn't realize Eddy Izzard was an expert on climate change. Great job Eddy...... Keep up the good work!

[@harreits]

Climatchange has no experts, they rule on expectations and modells. Climate has a ever ongoing change, up and downthat is it and nobody can ever do something about it. Maybe change local for they can work on chemtrails and make rain. But that will only affect the place where they do that.

[@harreits]

I hear a lot of assumptions...

[@nelchid]

@@harreits it's well and truly passed a generation by. Probably even the next generation too. Maybe the generation after that will put in the amount of work & change necessary to be able to make a real difference. This generation.... No, next generation will be the talkers. The generation after that will be the doers & maybe, sadly when it's forced upon them, the generation after that will be the "We have to because we no longer have a choicers!

[@nelchid]

@@harreits Harry....., We haven't got a clue!

[@harreits]

@@nelchid there is no option, this earth does what is has done for centuries and eons, it turns and wiggles a bit and has a sort of spiral action with sun and moon through which the climate tends to go up and down. As it is impossible to do something against these interactions of sun and moon and even other planets, it is not helping whatever people can do...but destroy the economy .

[@diontaedaughtry974]

If we're in the 6th great extinction then I have to work on my extinction pose 🤪😑😮‍💨😒😱. Great documentary 👍👍

[@julescaru8591]

Life will undoubtedly go on , unfortunately the human race may not , and it’s no more than we deserve 🤷‍♀️

[@Miss.Lechuza_Chusma]

Undoubtedly ? What if nothing survives

[@philipmcdonagh1094]

No prizes for guessing whats going to cause the next extinction event.

[@Snailmailtrucker]

*Recurring Micro-Nova on the Sun !* (Every 12,000 years...our 12,000 years is up any day now !)

[@willhall4037]

@@Snailmailtrucker lol...only a few know about the cycle. Not sure if micro nova has enough support yet. It's too frightening for the masses anyway. Keep it a secret and we can at least die in peace. S.O? :)

[@philipmcdonagh1094]

@@Snailmailtrucker Now that sounds good.

[@PureSniperWolf]

@@Snailmailtrucker I haven't heard of this. Now I have a new rabbit hole to search for. 🐇

[@PureSniperWolf]

Plot twist: Aliens from Omecron Persei 8, because we canceled their favorite show thirty years ago and just now found out.

[@mridulpandey6646]

Great documentary, all this information is new to me but very interesting. Just one suggestion, from 28:33 to 29:19, there is a mismatch in the audio and video content. Maybe you can fix that, if possible. Edit: @ 40:40, if we time travel in future and look at the fossil record of present era then we will find mostly plastic, concrete, human bones and some other rubbish junk. It will be a mess.

[@troymann5115]

Almost random sound bite inserted "Lystrosaurus was the ancestor of both dinosaurs and mammals alike." Sorry but Lystrosaurus was a synapsid and could not have been the ancestor of dinosaurs.

[@christopherlane5238]

And your credentials to rebut this statement are...... ?

[@TheMattTrakker]

​@@christopherlane5238 You don't need credentials to understand basic anatomy, you NPC weirdo. It's been rebutted by any legitimate scientific article/documentary/talk that mentions the origins of Dinosaurs. You can likely find something about it if you check out the Royal Tyrrell Museum videos.

[@amberkelliher6555]

Let alone be the ancestor of BOTH dinosaurs and mammals. (Not even related to current mammals, btw!)

[@davidclark672]

Glad to see that there are so many people out there who, like myself, are concerned with our planets health.

[@kerolokerokerolo]

Concern doesn't cause change. Action does.

[@mehg8407]

@@kerolokerokerolo Concern is step one towards action.

[@ashleelarsen5002]

Good times 33:33

[@SMHman666]

@@kerolokerokerolo Would you take action without concern?

[@MaryWaterton]

I'm not prepared to freeze my behind off because NUTCASES think the world is about to end. We're having a historically cold winter storm this week nationwide. The electric grid failing because of the over reliance on wind mills and solar panels. People have literally died because of this STUPIDITY. Folks ... CO2 is not a greenhouse gas. No CO2, no plants. No plants, no food.

[@alanbevington4875]

At 22:24 he starts to talk about the current "perfect storm" of conditions and then adds "not just climate change induced by humans" and then starts to enumerate them, 'deforestation', 'urban sprawl', 'habitat fragmentation'... All, notoriously, 'induced by humans'

[@dennischristensen5892]

The one and only way to survive climate change: Adapt and Survive. sadly we are currently more focused on adapting the envirorment, than making us self adaptable to change. (this short rewiev of earths history tells us that anything else is beyond stupid!)

[@michaelcap9550]

The proposed cure is worse than the disease, so to speak.

[@rossboss555]

Wake up

[@utubemewatch]

@@rossboss555 brilliant scientific argument to a question of natural science. Your claim of value, admonishment and level of neuroticism almost suggests this is pure scientism to you. Religious scientism and you’re evangelizing. Shout your prophecy of what’s good and evil in earth science. Tell Copernicus to wake up once more.

[@cyrilsquirrel2874]

dennis, i wish more would think like that but they all want to live in some sort of static version of environment..if you don't adapt ,you're history.....surely evolution has taught us that lesson

[@dennischristensen5892]

@@cyrilsquirrel2874 i'd just want people to think, instead of being told what to think, if i tell you that we find microplastic in the guts of breast feeding 3 months old human babies, and you still think an invisible gas is more dangerrous to Our ecosystem (that some gas wich half of all life on this planet (plants and algees) live from) Then you don't think, you're brainwashed.

[@AtomicPunk23]

So the six mass extinctions are: Ordovician, Devonian, Permian, Triassic, Cretaceous, and now Quaternary. I hope whoever evolves sentience next will use the geologic record as a warning and not make our mistakes. That's humanity's purpose I guess; to be a cautionary example to all future sentient earth species (assuming there are any).

[@danieltravis5082]

LMFAO this is the most hilarious comment of all time

[@TheMercury79]

@@danieltravis5082 haha, I needed a good laugh. Anthropocentrism taken to a new level

[@rollotomassi6232]

Human mistakes aren't the cause of any extinctions so far. No doubt the slate will be wiped clean and life will reboot, it is the natural order of things. Humans will have little to do with it, more likely continental plate shift which redirects ocean currents or an asteroid strike.

[@nicolemccurdy4695]

Nothing new under the sun. This age isn't the only one to have been advanced with knowledge and inventions.

[@IIYamiSanII]

​@@rollotomassi6232 people like you are fooled by forked tongue politicians into teaching your children that Europeans were Egyptian. You sound like you dont believe we've done anything wrong here. Or are you just so desperate to fool yourself into thinking humanity isnt going to cause its own extinction, it effects your judgment.

[@TheNewPhysics]

Amazing video!!!

[@Rusty_Gold85]

The UN need scientists to deep dive around the Indian ocean and find how much the huge Chinese fishing fleets have stripped the oceans of all marine life that is eatable

[@williammoore841]

So what would the UN do if they find huge damage caused by the Chinese? Nothing....UN has no power to change anything China does

[@biggiesmol]

The next mass extinction will not destroy this planet. We in our hubris and arrogance may be gone but other lifeforms will emerge and flourish

[@PureSniperWolf]

Agreed. If anything, life on Earth is too persistent to just die out for good. Even in 5 million years of toxic atmosphere and deadly ocean, life still came back. 😎 If changes are too radical, then I agree humans will not survive- but other things will or when the environment as a whole settles down life will come back. There are species that were once other things but over time now look identical. Not saying we shouldn't care about our planet, just saying the planet won't miss us.

[@Jc-ms5vv]

Unless earth turns into Venus??

[@amberkelliher6555]

Eventually, the current life forms of today----ourselves included-----will die out, and be replaced by new species, evolved from the lowliest life forms (rats, cockroaches, etc.) That's part of the circle of life.......and death. Unfortunately, Earth, along with the rest of our solar system, will inevitably perish once our Sun burns out and explodes. But by then, it's possible Earth will already be a dead planet due to the core getting cold or some other event like that. Nothing lasts forever, but life is too short to dwell on those things.

[@amberkelliher6555]

@@PureSniperWolf You know what is kind of depressing, though? After we're gone, will there ever be another species like us? One with culture? A deep understanding of the world? The ability to look back and fully interpret past human civilizations as much as possible? Probably not. Maybe on another planet in a far distant galaxy... but somehow, I doubt that, too. Say what you want about humanity, but there's no denying that we are a unique species, and one that gives a whole new meaning to life. There may never be another species even close to us, let alone more advanced than us.

[@tomMXBN]

@@amberkelliher6555 I agree with you almost 100% but I believe that it’s highly likely that there are other civilisations similar to us on other planets. The ridiculous amount of galaxies out there. We are so unique and i find it odd that some people don’t realise that.

[@jamesodom4980]

Ridiculous amount of ads.

[@jazzjazz7231]

The current ice age we live in has flip flopped between interglacial and glacial periods at least 17 times!

[@hillbilyjed1318]

don't understand. they're saying the tree roots caused erosion? don't roots hold the soil in place, if not than what was the dust bowl all about than?

[@wwoods66]

Over the longer term, the roots dig into the ground and break rocks apart in a way that hadn't been happening before plants lived on land.

[@harpo345]

@@wwoods66 Highly unlikely. Just fear-mongering pseudo-science.

[@mikekincaid7412]

I signed up for the adds.. love to see mop commercials and get rich over night shows..tomorrow I’m learning how to pan gold from my front yard than buy that gizmo that will make my truck get 300 mph

[@bonnieweaver2735]

Trees don't cause erosion they help to hold on to the soil and keep it from blowing away. Get out of your office and do some field work.

[@c2880cag]

What a great film that every man, women and child should watch

[@gabrielehanne580]

Just the adults . It would be cruel to show this to young children .the suicide rates among teenagers are already on the rise . They instinctively know that their parents generation is literally murdering their future . Corrupt politicians in DC leading the way . It was their greed after all that suppressed / disappeared Tesla's free energy technologies . JP Morgan , the Rockefellers and so many more.

[@tomover9905]

This video is a foundation upon which I can research some of the details and make changes to my life and advocate for changes to economic and political policies.

[@johncoviello8570]

Very interesting! Well done!

[@bradalexander6252]

In my experience plants, and plant's roots help stop erosion. Areas like deserts with no plants have heavy erosion because there are no roots to hold the soil. How was it the opposite four hundred years ago?

[@patrickredmond1211]

Surface disturbance. Human caused. Natural erosion is limited in size and heals quickly. Human caused constantly expands and is increasingly increasing and does not heal due to population expansion.

[@grossepointemichigan]

Cue the "We're all gonna die in the next 10 minutes!" background music while they all head to Davos in private jets to present their latest papers.

[@delvis008]

With all of the extinction events that went on, I'm wondering if the galaxy we circulate may have some bearing upon a certain point of the galaxy? Could there be a time corrilation between extiction events and a certain passage point of the galaxy? Do galaxies suffer widespead extiction events on their solar systems when the Supermassive black hole turns quazar?

[@MabawaVocal]

you are here asking these scientists,they are humans with telescopes,they can only be sure of something they have seen,they believe in dinosaurs but dont believe in Jesus....these are just assumptions coming from humans who they term as respected scientists,,,,they should figure out corona first

[@matthewmeier9943]

Who do you buy your weed from?

[@delenacarlson3288]

@@matthewmeier9943 that’s a pretty personal question. He’s definitely not giving up that info!!

[@kattomee4824]

I can understand ur thought bro but life itself seems pretty personel to put planet and all the processes and everything, the only external effect we understand is that of meteors carrying variety elements and hitting the planet

[@alanteiv3688]

@@delenacarlson3288 1

[@michaelmccaw]

Imagine that, earth has cycles of warming and cooling...........

[@jeremya1018]

I never thought I would watch Al Bundy in a documentary about climate change.

[@jennifermcdonald5432]

I believe we have damned ourselves, and will die out, well most of us anyway. That will be a wonderful thing for the earth, give it time to heal before we build up numbers again. It’s very sad but we are way too greedy, selfish and cruel to continue on. We just don’t learn from mistakes, we have experts but refuse to listen to them, so I guess we deserve it!

[@BOB-wo2nb]

Amen

[@justsomecoolprayingmantisd6422]

We’re all gonna be moving to mars. Gonna start colonization Lol

[@OneVoiceMore]

You're all silly, uninformed alarmists. This is an agenda-piece playing WAY loose with hard data.

[@NAPLAKBULU]

What if all of this things is a lie ???

[@PureSniperWolf]

Agreed There are natural heating and cooling periods - we are now entering a natural shift. The Earth's axis shifted several degrees zfter a huge earthquake several years ago- that plays a part in climate shifts. How mu h of these toxins or gasses were trapped in the ice that is melting, thus adding to the atmosphere? I haven't heard anything about that. I'm not saying humans have no part to play in the envirnment, but to blame it all on humans is ridiculous. Even in this video, things have been much more hostile for current lifeforms before and nature thrived. Does plastic pollution and overfishing/overhunting make no difference? Of course not! I just think there's a lot more to the story than the past 50 years humans have been doing things, compared to the millions of years that Earth (and sometimes space) has been killing life like an infection and life has started over once things calmed down.

[@sinenomine4540]

Big oil likes you

[@donahunt832]

well you wont know anything about it, lol

[@prometheusunbound7628]

What if it's not?

[@blackhawk7r221]

What if our world is but a spec of dust within a single drop of evaporating water

[@tomjimenez1881]

7:23 That dragon fly is like a alien the way it made a sharp turn

[@shaunmitchell2069]

I subscribe to the idea that large asteroid impacts cause massive volcanism. I think all the previous mass extinctions were caused by impact events and thier after effects

[@portfolio91]

Very possible! Good evidence of both bolides and volcanism in both the KT (chixulub) and PT (250mya) extinctions.

[@mimosa27]

"Life under a green sky..." Just imagine

[@gonphercoughie897]

How about mauve or chartreuse, they'd be pretty cool colors too......

[@mimosa27]

@@gonphercoughie897 According to this documentary, green sky actually happened. Mauve or chartreuse, likely didn't

[@randyhead6481]

As recently as Shakespeare's time the sky was often described as being a beautiful shade of green. However this can be attributed to the fact that the word blue simply didn't exist yet.

[@justinw7323]

Mr. Burns from The Simpsons stated he was as old as Pangaea. Wonder what he experienced? 😂

[@kingerz]

The asteroid idea was the Dino-Killer That Scientists Laughed At when I was a kid. They need to be less dismissive to ideas like Graham Hancock's ones now.

[@harreits]

it is a fact these days, you life in the past?

[@charleskemp2037]

we are an experiment, put here by aliens, probably a high school science fair project.

[@asahama8173]

What if we were aliens 😅

[@AstrosElectronicsLab]

What if this is all just a simulation?

[@AstrosElectronicsLab]

What if this is all just a simulation?

[@AureliusSagan10]

There was a bit of video on my ads. I will not watch this Channel again.

[@okramw1]

The first half is ok, but the second half becomes an environmentalists message about our 🤬 up the planet. Not to say we aren't having an effect, but that's not what the title of this program suggests.

[@severedvibrations1211]

Exactly. From education to propaganda.

[@okramw1]

@@severedvibrations1211 Saw a Steve Sagal 🎬 On deadly ground many years ago. Fun, until the very end when he goes into an environmentalists rant. Made us want to puke. & then I wanted my money back 😒

[@amberkelliher6555]

Pure click-bait, as simple as that!

[@wadas9042]

Can you make video about diffrent species of humans?

[@jimchallender4616]

Best "Five Extinctions Content & Video Quality" I've seen! KUDOS!!

[@samconagher8495]

Where, pray tell did you get the "1000X" normal extinction rates? This is unlikely to be true due to problems of measurement, short observation periods and so forth. This is not a consensus by any means

[@timmyj2366]

There’s a lot of propaganda in this documentary. We are not in a current mass extinction.

[@samconagher8495]

@@timmyj2366 I agree.

[@TheMoravians]

I agree, measurement problems and not long enough observation periods, for sure. In addition, there seemed to be a "bait-and-switch" at that moment in the video. First they're all talking about several mass extinctions, but then at 19:30 one guy brings up what he calls "background extinction", saying we need to "differentiate between background extinctions and mass extinctions". Then he says the current extinction rate is "1000x" the normal extinction rates, but that's in comparison to the "background extinction" rate, not any of those "mass extinctions". That seemed deceitful to me. They don't ever numerically (with actual numbers, like 1000x or 10x, etc) compare the current "mass extinction" to the past "mass extinctions" in this film, just vague comparisons to make it seem like it's worse.

[@zeroamity4788]

@@timmyj2366 Many and I mean many believe we are in the next mass extinction, which is evident by the amount of species that have gone extinct just in the last century.

[@timmyj2366]

@@zeroamity4788 It’s a lie you’ve been told, not that many species have gone extinct. Look it up.

[@apacesetter]

First ten minutes were good then went full on preachy about climate change. Wanted a scientific documentary not a tree hugging shock drama.

[@booklover6753]

An impact event or volcanic activity causes regional death and destruction. Both types of event cause worldwide climate change which is the ultimate driving force behind mass extinction events. Being an obvious climate change denialist, why are you watching an educational video?

[@stefangabor5985]

Nice documentary. Holly molly lady, the strongest accent ever!

[@mikechar17]

4:00 since when do trees roots digging into the soil cause erosion? Doesnt it hold the ground?

[@virginiaotter6981]

I had the very same thought. Lack of vegatation creates runoff. Trees stabilize the surrounding soils. That's what I've always understood.

[@booklover6753]

@@virginiaotter6981 I think that they are talking about trees breaking up volcanic rock with their roots. Earth's crust was mostly rock initially and the first trees would have caused fracturing allowing the first runoff I suppose. A better explanation of something as counterintuitive would have been nice.

[@grunthos1]

@@booklover6753 I'm inclined to agree. Trees will split granite, and pretty much any other rock. Also, lichens break down rock.

[@rogershapland5042]

@@grunthos1 Have you ever noticed how friable the soil is in a burnt out stump hole?

[@Melker63]

18:18 "Meteor go through atmosphere within a fraction of a second". I'm sure it took longer. It took at least a couple of minutes. It was not a bullet going straight through earth and out on the other side.

[@jays2551]

no, he's right. a part of what makes asteroids so destructive is their speed. they're moving at thousands of miles per hour, so when its path intercepts the earth, a tremendous amount of energy is released very suddenly.

[@RocketCock5]

No it was not a bullet, it FAR exceeded the speed of a bullet. Imagine a Mount Everest sized asteroid coming in at 45,000 miles per hour. Most shooting stars we see at night are traveling at similar speeds. Rang our planet like a bell. Another thing to consider is the impact angle.

[@davidbagstad8964]

Thanks, now I can avoid every other Spark video full of conjecture, supposition, and fear-mongering.

[@AstrosElectronicsLab]

I'm thinking of unsubbing. This video, I'm half way through and it's absolutely bad.

[@bingosunnoon9341]

Denial, anger, bargaining, depression, extinction. We are still firmly rooted in denial.

[@indecent0079]

More like depression, they just want us to be in denial of it 😒

[@comatose3788]

Wrong title ... Should have been. How to relate everything to global warming you possibly can for 15 min then 32 min of just talking about how everything possible is due to global warming.

[@TheMoravians]

Yes, the whole thing was a "bait-and-switch".

[@zephheine9681]

definitely right there sir...

[@SamtheIrishexan]

Its insane to blame humans when you literally are providing the evidence that mass extinctions and worldwide cataclysm are common, and almost cyclical. The ice age is ending and humans are barely having an effect on that process. The natural state of the planet seems to be pretty hot and humid and the ice age we have become accustomed too is the result of a cosmic impact and so earth naturally is returning to a hot and humid state. Let's not forget we don't understand the major processes on earth with any certainty. How the ocean currents etc really affect things are still not certain. What will happen with global warming is unknown, we will likely be living in a triassic type climate. Earth has a way to regenerate itself and balance itself through evolution of surviving organisms. Humans hardly are a drop in the bucket.

[@paulmakinson1965]

Yes, we do pretty much understand what is going on. And apparently, you missed something crucial that was mentioned (42'45"). While it is true that climate has always changed, the changes that used to take several million years are now taking decades. This is crucial as life has no time to adapt. It is like hitting a wall at 3 mph versus 300 mph. The planet will probably recover. We humans will probably not. We will go the same way the dinosaurs went.

[@stevefisher2553]

Look up the word acceleration......

[@lifesajoke6965]

I dont know about you but I'm a mammal, and unlike giant reptiles us mammals dont do to well in extreme heat.

[@ThorpeTerry]

Well said. These programs so often are a letdown because they are trying to push an agenda rather than just being factual.

[@ThorpeTerry]

@@paulmakinson1965 you seem to have missed the fact these climate alarmist have been saying for many decades that it’s happening in decades. In my lifetime so far I have survived the predicted global cooling. The predicted hole in the ozone catastrophe. Now global warming is missing it’s predicted targets of disaster too. So to sum up. I didn’t freeze to death or die from deadly solar radiation and so far my house is not under the predicted 200ft of water