Planetary scientist Dr. David Grinspoon is back as guest host to answer your questions about the human impact on Earth during the “Anthropocene Era.”
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This is an unofficial transcript meant for reference. Accuracy is not guaranteed.
Skip the commercials support star talk on patriarch to listen to every episode, Commercial free, welcome to start off your place in the universe where science and pop culture collide knocked off begin right now to star talk. Radio. My name is David grinned spoon, I'm an asteroid, biologist, interplanetary scientist. And I M here with my co host, Chuck Nigh, say Dave Hawaii, I'm fine. How are you doing chuck great man Oh I'm happy to see you yeah oh curious as to where Mr Thyssen Doktor Thyssen is busted. Now now people know, I'm not here. I am sitting in four Neil Thyssen, whose off filming
Cosmo somewhere right literally, he has left the galaxy so nails off doing the cosmos as You want to do and we are left here to carry on without him as best we can, and so we will be today doing cosmic queries Yes, answering your questions and what's what's the topic today? Okay, so today, of course, we call all of our resources and do a facebook and twitter in of the various outlets where we appear on the internet, and today we have questions about human impact on our very own planet. Yeah. It's a planet and therefore its part of space, and so it it belongs to start Accra. Ed certainly does you know, and you know, there's a lot of things in space that have a big fat on earth. You know, and so what we have done is we ve got all these questions here. You have not seen the have nots. The questions, and I understand that, even though you are an Astro biologists that this is
also something that you are a subject expert. Would that be well? It's something I've been A lot recently I mean, as a planetary scientist, I've always been interested in earth. That's a lot of what we learned when we study planetary Sciences, how to think about planets. Do you learn about volcanism earthquakes, things that make earth take that the climate so forth, but we usually, I am at other planets at what I've been doing recently is saying: well, let's take the techniques of planetary science and and think about earth as a planet and even think about about humanity. The human impact as a as an event on the planet. What what what humans doing to the planet and how? If, if we're thinking as planetary scientists, how without look how the way here they're changing the planet? So that is what I've been workin on recently and I think it's definitely a topic for space science. How? How does that space perspective, influenced
baby, look back at our own planet and what can we learn about our planet? From that space perspective, I'm going to say that what we can learn is that we as human beings sock when it comes. I got a feeling. Earth set us like we suck, I'm just sorry, that's pretty much our well! We got about to answer, for I mean we ve Ellie Ban would become a major geological force on this planet and some of what we're doing it is a little bit more about you compare two things in the past and you look at the asteroid that came and wiped out. Ninety percent of the species are right now we're that asteroid where you know we're causing a mass extinction, were changing the climate and radical ways and we're not it's not like we plan to do this. Nobody said hey. This is a good idea. We sort of stumbling into this role. For now a lot of people say no, let's look at this role and figure out
What do we want to be on this planet? So I think we're we're in this moment of realisation of what our role is. Let's hope, I think, you're a bit more optimistic than perhaps I am a bit more of a say, but let's see what thou, let's see, what our listening, I have to say in the form. The questions that they have for you are first, one is from Kalen Bug, be what great name from Huntsville Alabama we're talking about human impacts on earth. In one of my classes, we have been debating which human activity will lead to the collapse of society. As we know it, we have discuss energy consumption, overpopulation destruction by technology. These are the robots destruction by nuclear terrorism, pandemics and finally, water pollution. If you could pick one destructive human force, which one would it pay, what a happy class we got quite quite a menu there,
yes well! Thank you. Thank you for that question. I mean it's it's a good question and I would have to say your question does presuppose a certain pessimism like which one is going to destroy us. It doesn't leave us the option that may be. None of them will nonetheless, the first thing I would say so. Those are our conflated because it's it's it's what we call a wicked problem where, where you can't really separate things out, population is all what related to all those that are, as if we weren't pushing nine billion people commit century, then almost none those other problems, problems of human footprint would be have what they really signal as big a deal right, but I think Nigel Nature Travel because she says, like pandemics, wits apps honest, That that will happen if we weren't travelling all around to and fro the way we do. Yeah I mean those are all related problems. I would say you know. Out of those the most immediate one, is you gotta go to climate change, because that is one that we
no is happening now, it's accelerating and we don't have a clear path to saw that we have some good ideas. A lot of good intentions, and I don't see that is hopeless, but out of all those other ones like you know, robots taken over. Maybe you know that could be scary and future right now is not the thing a case me up at night, so we don't have to fear cyber dime systems. Quite yet not quite yet I mean I think it's it's. It's smart to be aware that our world will change rapidly as computers get smart, and some of those changes might not be completely to our liking. It right, you know it's good to have their on our radar, but but let's face it, climate changes. Right now. We don't all agree completely about the extent of it, but most scientifically literate people now ready, Nice that it is happening and that there is a large degree of implicate if humans and that, if we're not going to be the stupid species, that soils its nest right and dies, or at least destroys civilised
It should read and we ought to really be applying our intellect to dealing with that now, whether you go Kalen there's your answer: one don't poop where you eat and two were looking forward to terrorist at nuclear terrorist robots that cause climate change. That is the biggest fear that we set now that's great, ok, climate change. That makes a lot of sense. I must move on so the Mets one from Tommy means from Saint trawls. Missouri I'm reading Kevin Kelly's what technology once one hypothesis in the book is that technology was inevitable from the point of the big bang. Do you find this to be true? If so, can we now harness technology to heal our in via remit? So did the bid?
create technology own. How do we hear our environment where the laws of nature were set in motion with the big bang in those laws seem to be conducive to the evolution of life on some planets, and I think on some of those planets that complex life will lead to technology. So in a certain sense, technology was ordained by the Big bang, not exactly on this planet, some kind of round about in a round about what yeah the capacity for technology and yes, I think technology can be used to heal the problems. We have not technology alone. A lot of it's gonna come through self knowledge in us being able to manage ourselves more wisely, but that knowledge of self has to go hand in hand with knowledge of nature and knowledge of how to me daylight nature, which is technology so technology. Yes, it was ordained in the big Bang and yes, it will be part of the solution. Yes, our saviour technology. Thank you, big bang. All right what we gotta take a break now more star talk when we
today. Welcome back to start radio, David grins Bernheim and asked a biologist sitting in here for Neil Thyssen, with my co host Chuck nice ay- and I were talking about the human impact on earth and its space dimensions here so Let's see what what? What do we get for another question, I got some more questions come in your way. Let me just reiterate that you have not seen this questions you're, just answering them as if the person we're here as if we were all the annoying guy at the bar. You know I've met that guy before my god you're s reply I'll, just ok power. The planet
aren't you gonna buy me a drink and then we'll get to that are here. We got this is from southern noddy from Budapest. Do you agree with George Carlin that we exists because earth one it plastic but didn't know how to make it so pretty funny joke actually just a. As it looking at the earth with a microscope and seeing all this mould ass humans growing living spreading as a by product making plastic Clearly, she despises humanity by. Well, that's a question here: Ashton, yeah requesting here's cause she's she's, making a joke, but here's the real question here what we be considered: a virus, a bit of a scourge on the on the face of the earth and the second I'm gonna make an addendum to her question. Coming from me personally,
do we belong here, cause a kind of seems like we don't. It seems like the only people that are in sync, with what's going on earth is us, so are we a virus until we belong here? A great questions? Thank you Sabra, and yet and shall combat yeah. Thank you check. I want to stand up for the human race here a little bit, though I mean it's like sure. It's obvious in some ways were like a virus. You look at the pattern of our growth and you look at a virus, and in an organism in that it just reproduces to the point where it makes its host ill or kills its house. But, of course, a successful virus doesn't kill off a toast and a successful species may get to a certain point of over reproduction and then have some self preservation instinct and decide not to kill off its host, and you know, if you look at
long. History of life on earth were not the first species to come along and sort of screw up the planet. There have been catastrophes that have come along before that have been caused by species of life. The sino bacteria two point two billion years ago. Evolve photosynthesis and they thought. Oh, here's, a great energy source sunlight. This is wonderful and they started polluting the air with oxygen which cause a catastrophe and wiped out most species that we're alive than so interesting. They were not. First, species to come along in the quest for an energy source and screw up the planet. That's not to get us completely off the hook because we do have, possibly intelligence and foresight and consciousness, that is to say, ok, this life interacts with the planet in complex ways and we're it's our turn right now and we're interacting with a planet in this way. That so far has been this the exponential growth in this exponential perturbation. And yet, if we don't change,
in some of our patterns. Then we will be like that virus and just destroy our own. The delegation, and that would be too bad, but we're having this conversation were coming aware of our role on the earth, and so I actually think that that makes us different the Santo bacteria and maybe we'll get to the point where we have enough that conversation. We can start to actually sort of self consciously alter our role, My wish and actually that's my expectation, I think we're we got a lot of learning to do, but we our species that alters our world and Learns and changes our behaviour, and I am actually optimistic about the human experience on earth and I can see why people think we are like a virus. We have been like a virus, but most viruses don't talk about the fact that their like viruses. We do we're Talkin, and so, whereas the offer whereby reacts Agnes makes us a little different, all differences there, you go. There's your answer: human beings, better than this Ano bacteria, so let's violently bowed slightly
slightly were aware of it better than sly? That's it just a little bit better than slide. Smarts lie, that's our new model, but we're smart girl. Aren't let's, let's move on to rob Wilkinson and robs from Jacksonville Florida with pollution problems such as the Pacific garbage patch. How viable is using the magma of subjection zones to break down garbage, especially plastic, to reduce the number of landfills this guy's thought about this question just a little bit? What's what's what his theory does? Why that hold water? And that's that's pretty that's pretty wild. I mean first of all, yeah Pacific garbage patch, there's a big zone of garbage of plastic that has been found in the Pacific, it's kind of scary, because it's this huge zone, hundreds of miles across. That's that's all of our stuff- that sort of collecting there in the Pacific and slowly breaking down. So it's
you know it's big human impact on earth is not subtle any longer. Now, specifically, this Sean of using the magna in subjection for those of you that dont know us abduction zone is a place where you know earth has plate tectonics the plates that cross the solid part of our earth is split into these thirteen or sell place that are sliding around and crashing into each other, and some of my cropping up crumpling up into my and other ones are getting pushed underneath and the places where they get pushed underneath deep into the earth or subjection zones, and that is a place where material gets taken down into the earth and baroque down into its constituent, get all elements. Or at least small molecules, and so if you could take all the plastic and put it in the right place, yeah that would get rid of it. For sure and break it down. I dont know how feasible it is. I'd like to like the Beatles that I'd like to see you I am you know, but the but I'd die, wouldn't roll it out. I mean that's the kind of cream
thinking that we need. You know how do you really get rid of plastic shore? Put it on a Sabena, Seductions Onan Senate. The man of the earth. I am all for it. If I could see the details, I wouldn't wouldn't rule it out. I would I would you know before I invested in this we need to see the day after tomorrow, but no more of the yeah. That's the theory. He's got a pretty decent plan there such damning. There's nothing, there's nothing that sounds wacky about it to me. It sounds
you know like, and maybe maybe maybe there is a well developed plan for this- that I just don't know, give our trash the Morlocks. It's their problem, now read out there you go, they might even like it. Ok, let's move onto Youssef that Mark Esparza. What a great name regarding these recent earthquakes in Texas are their real. Are they really attributed to natural gas fracturing shit? We stop the fraction of find another way to get natural gas. Let me just say in addition to that, it is no longer just Texas, Pennsylvania, Michigan and several other places in the country where we have seen seismic activity where we are I have not. There is also a fraction, of course, the people who fracture you there's no connection nano way. There is a connection, it's pretty, what's pretty well known in its understood physically how it works when you pump large amounts of water,
underground. You loosen up some of those faults and they move, and you got earthquakes. Fortunately, earthquakes you get from this, tend to be shallow, and rather small and there's even the argument that that's good, because the re leaving tension on the faults which otherwise would build up and eventually result in a large earthquake? So so there have been tracking related earthquakes. They haven't been like massive, catastrophic ones. It does speak to the fact that Our unintended consequences when we start doing these major engineering projects in like altering the earth in intense ways, in our greater and greater effort to extract those last bits of fossil fuels from the earth and in other different opinions about fracturing it
it's giving us fuel at a time that we need to re? Do sorry, foreign dependence on oil make an air could great have a natural gas is better than call, but on the law in the long run, its only at best interim solution, because we gotta move our energy supply away from fossil fuels. I mean we have to whether were worried about climate change or not because they're gonna run out and if we go to extreme, to get those last little few percent remains of fossil fuels. We could do a lot of damage. You know the tar sands and tabletop my mountain top mining there's a lot of like really horrible things. You can do to get that last bit of fossil fuel, Maybe fraction goes into that. Maybe not, I think, there's ways to do it safer and there's a lot of danger to the water supply and so forth. So I have mixed feelings about franking, but the earth, Our real and they do speak to the fact that we're not smart enough to enter
They are the unintended consequences and ultimately we know we gotta go beyond fossil fuels, so we really are putting our creativity and our ingenuity into those new energy supplies that we're going to need, no matter how much bracken we do here. So the answer is, without a doubt, these Earthquakes are real, oh yeah, and we pretty much need to stop racking yeah in the long run in the long run. Absolute ok and you do realise that never going to happen. Knobs hope, he'll kill a lot of money. We're talking about. Eventually, it's gotta happened because we're gonna run out of all that stuff. You know what now that's the day, I'm looking forward to the day we get off of fossil fuels is the day where there are no more fossil fuels,
that's one way to look at it, but one way or another. You know a thousand years from now, probably a hundred years from now and not can be using fossil fuels. Data are well, let's take a break and will come back and a little bit and will have some more star talk I've got no secret for you, when I consider singing all of the ads on this shell? Just one way to get out a hearing there go to patriarch arms last started, talk and the porters at the five dollar level or higher to listen the star talk ad free. You can download all current episodes into your favorite park, has player and ever hear. Another commercial on star talk ever again. You will definitely not after hear me saying if you support us at patriarch dot com last our talk,
I mean I'm just thinking I mean just saying. What about your star talk, radio, I'm day between spoon guest hosting sitting in four Neil Thyssen, and I'm here with with Chuck nice re most and on lifestyle that do a little self promotion, your chuck, what what's your twitter handle for the folks I thank you. David was so kind of you. You can find me at Chuck. Nice comic on Twitter, so If you like to follow me, I am more than happy to have yet so interesting. We now I've got a twitter handle to and what would that be? That would be doktor. Funky spoon at doktor, funky spoon is awesome, yander, funky spoon. I love it. Yeah yeah thanks and
and my website is funky science dot net fantasize, that net and the star talk website is STAR talk, radio, dot net. That's correctly, you can find all kinds more cool stuff at that address. Anyways, let's get back to doom industry, It seems like we ve, been on this on this rift over here the whole. I everything about the human impact on earth isn't like negative and destruction in, and terror and an doomsday, but it seems like that's what people associate with a topic that, through its understandable wise, is only because you know, you really don't see: lemurs screwing up the environment so that spoken up, we gotta, we got it. We got our own that, given enough time the lemurs would evolve to the point where it not be causing horrible industrial damages to I'm sure dad got
those lemurs. Eight million years from now, you just watch what they do. The plan exactly. I love your lemurs so much our right here we got let's go to. Let's go to Libby PAL Crow, who said the solution to pollution is dilution. Is it that's basically, what she wants to know is the solution to pollution dilution. What to say that all over those illusion to pollution is losing. I think, he's got it. Ok, let's get yeah. Well, it's a great question in its catchy to IRAN and superficially. Yes, I mean you know every
but he's some. Let's face it, taken a leak in the ocean at some point in their life, and you don't think too badly about that because they ocean is you dry it and it's like? What's the problem by but out fully you don't do it in a hot tub right. Could that's like little and but ultimately, of course, the world is more like that hot tub and on any given scheme I mean the hot question these days is Fukushima radiation and that's like a whole, Europe's hot, but in question. But the fact is, you can put a lot of the in the ocean at one point and by the time, We are talking about the hall Ocean. If you look at the numbers and you get to the other side of the ocean, then you're down in the noise you're down in it. You know the natural variation level. Were you really don't have to worry about it? So, in a certain not harmful exactly so, you have a solution to pollution is dilution, but you can't use that as a cop out in figure, because the ocean is
infinite right and wanting we ve learned. I think historically, people thought the world was infinite and yelled the west. Will you know we could just keep expanding forever, but hey you get. The end at some point and you come back and you encounter yourself and so ultimately know the solution to pollution it is not. I lose, I Lucian is it's a short term fix fora, awful horrible problem, yeah that you should probably look to something else other than the dilution. Yes, but it is catching, but in this case he I do like you know what I've learned from this question. Why no one wants to my hot tub. That's pretty much what I m not saying I do that just using an example. No I'm saying do and that's the problem. Ok, let's move on this from drew Willis from Davidson North Carolina. What impact
the industrial Revolution in America Slash Europe have on the current climate, now their pictures of small stacks and children and so etc. Are we now developing industrial aspects of Asia going through the same thing, yeah great question: when did this problem really start right? It was in the eighties that people first started really talk. But global warming. As this might be, you know some. We really need to pay attention to some people, and about two hundred years ago, but it wasn't considered a mainstream worry. But now people are looking at what we call the anthropogenic era, which is this study of the human impact on earth. Looking at us a geological period, do you know that the time at which humans are are changing the earth and end interesting question. When did that start? Some people say it was the industrial revolution. That's when you know we discovered this imagine we started using a lot of fossil fuels? That's when we started up and see or two into the air right. Some people say it say it started
before then, by the way we recall sure yeah, I was gonna, say Conniston with agriculture, with the lot account farts. Let's be honest, you got a lot of calico arts and clearing the latter in the land, with our two stage YAP changing that that the carbon cycle humans really started changing the carbon cycle and change in climate thousands of years ago. So it excels rated in the industrial revolution of the Euro, a teen fifty and it's really accelerator the last thirty years with what we call the great acceleration were everything's going exponentially off the charts so also, as is also too because now we're all doing it. You know you know before it was just Europe and America. Now it's Europe, America, China, Russia, the all of brick. You know it's it's every body out the developing nations. Now one of the ways in which their developing is their mimicking are no success in real him has
not the atmosphere- and you know how are we to say they shouldn't do it does because we did it, but in all in this together other than to say back is alert for what exactly. But hopefully you know it's in our interest to help them do their technology better, is in everyone's interests. So yeah, you know in a certain sense, they ve got the right to pollute because we ve- Who did that? In another sense, we have got to solve this problem because We are there's only one atmosphere more Aubrey than it could now very quickly. What was that error? You you set against the anthropogenic era at Super human, human, the anthropocentric era. Just remember that drew because there is the answer to your question. It's all of us at all times, yeah, alright! Well, on that now, we'll be back in a few minutes with more star.
I'm about to start on radio master biologist, David grinned spoon sitting in four Neil Thyssen, and I'm here with Chechnya. Yes, yes and we're talking about we're. Doing cosmic queries talking about human impact on earth and Chuck. Has all these great questions sent in by listeners and that's? What's? Let's have another: one is jump right back into an ok and this one from Markel horror, but now Marcos, as do you think, the climate change debate would be different if global warming was branded as climate change from the beginning of that tough question: you know it's like so much, not a science question. It's it's! A marketing and psychology question mean is very interesting and I think those of us in the science community we kind of get down and ourselves and say, or with handled this wrong. There's all this anti science and paperwork and
is in against. If only we had used this word and not that word, and I don't know, I think that resistance comes from the fact that that has a great deal of money being thrown at the problem. Why energy companies, add that to confuse the issue. May money exploiting human psychology in the human psychology is to not be able to believe that we are actually affect. The earth? In this way I mean, after all, it's the earth and we're just us right and how could we possibly be messing up the entire world and so others that there's a actual human disbelief. Innocent that's been exploited, I think, by those who do have an interest financially and saying oh you know global warming ha ha and then, of course we respond to these short timescale. Thing salvo be like a cold spell or snow storm and people will say of, where's your global warming right now and of course it doesn't work that way. In fact, you can have years of called temperatures and global warming is still happen
Because there's natural fluctuation superimposed on the long term trend- but you know you it is: it is a marketing problems, getting people to accept this, and so so you can wander off What if we hadn't used global warming, you know what did we make some horrible mistake? I tend to think no, it's like it's more a question of getting people to kind of grow up and face reality in the end. That's not like. Well good luck with that, but I don't think we made some horrible language choice by calling it global warming and climate change has better in a certain sense in that it's more complex than just oh things are getting hotter. It's all these changes rainfall dorms. You know moisture temperature is connected chain. I heard someone say once we should call a global weirding, because really it's more about extra weather patterns, not just climate or as as you say, temperature or not, whether yeah extreme, this of the absolutely absolutely global weirding, because because there are certain locations
course that we'll get warmer and certain locations that won't as much for a long time in certain places will, the winners and losers and they'll be changes in precipitation. Matters is much more complex than just a change in temperature, so global weirding is not bad course roll off the tongue. Ghetto economist earth seem creepy right yeah, just like you know with what are you wearing? You know that the global Weirding, that's me- that the basque or gettin weird? Well, you know what years a follow up to Marcos, question from Daniel heed or head I'm going heed. Our climate changes really climate changes. Ok, we look like we call it climate change. Is it really climate change? While what else would it be? I mean ok,
I would like, on a permanent basis, like harmony is harmony, changes like all permanent change, whelps, not just our racy, whether Pat it's not it's not permanent. What we're doing because the earth has these long term cycles, where, in fact the carbon is regulated without our interference at all long before we got here, carbon dioxide in the atmosphere went up, it went down and due to all kinds of complexities in the earth system and changes in the orbit and solar radiation and positions of the continent's there's. All these things that, over the long term, change climate and earth has a natural mechanism that regulates seo to regulates com. In the long run, because volcanoes, and because of chemical reactions that succeed, two out of the atmosphere and make limestone and all that the the earth returned to normal and the climate will return to normal. But that takes a few million years to happen up also, that will not help us daily girl will return to normal without
so nothin's permanent, but on the timescale we worry about our timescale of our civilization, it's what we're doing will last for thousands tens of thousands of years. So for your purposes in my purposes, it's pretty permanent gotcha. So here you go catastrophic for us, nothing to the earth, yeah, exactly exactly we're, not threatening the earth. People say: save the earth. None and it's not save the earthy earth. Will be fine, it's save the human right. So basically, you talk about these debates, it's about our own carcass, well and all the other species of my ankle with us. You know I don't care about them, David, outlying regions, because we need em. I gotta tell you I'm a little partially human beings because I happen to be want, but try to be a human being on earth without those other species and where host I we're gonna take a break. Now we back in a few minutes with more star talk. Radio. In the meantime, you can visit us on the website at STAR Talk, radio dot net followers on Twitter at STAR, talk, radio and check it out on
its work on the start off radio Facebook page will see you in a few. I welcome back to is talk. Radio, David grins, Bernard Monasterboice August, filling in four Neil Thyssen. I'm here with my co host Chuck nice yeah, and we are now ready, hopefully for the lightning round. This is where we quickly get to a lot of questions we didn't get to before and give succinct
but highly incisive. An accurate answer said is correct certain. Whenever you are done with your answer to allow me, there is time to move on to this and there we have it. So let us get it does not feel get right, let's just right into it. Alright, this is from a Susan monopoly to combat global warming. Besides reducing our production of greenhouse gases, is there any way to reduce the amount of solar radiation that reaches the earth. I'm thinking ring world shadows squares around the earth rather than around the sun. Oh yeah, schemes that people have come up with where we could Box and solar radiation by putting things in orbit big, shadowy squares, massive engineering schemes,
in the long run. Humanity might want to do something like that. I am wary of that in the short run, because that sort of an abdication of our responsibility just like get control out of our energy and our emissions, but I think we should put that in the parking lot as they say and considerate for some food sure time when we know what we're doing a little bit more with space technology and we may ultimately need to because the sun's getting warmer and in the future we're going to take more drastic measure so yeah, maybe maybe ultimately will do that. Let's go for another one, yet they I right. This is from mark right on Twitter is nuclear power, maybe our best real choice. Morally, Chernobyl place territory beyond human use, but plants and animals thrive, the morality of nuclear power as a lightning question shorter! That's easy! You know it's a tricky question
more concern. You are about global warming as an emergency. The more you have to consider other power sources and nuclear power does not create the kind of carbon footprint that fossil fuels. Does nuclear power is scary because it makes all this waste that last for a long time, and we dont completely know how to deal with, but I think the responsible thing for us to do is to be seriously considering nuclear as part, the constellation of solutions that we need to come up with, but it's not gonna be the whole answer, and it's probably not something that should be completely off limits. Data also from Twitter, Rachel Fender says: what would the consequences of a sudden decrease in greenhouse gases be versus a gradual decrease good question
There is everybody's worried about climate change more and more seo to getting hot or what would happen if the co2 went away right away today by the way, when you talk about some of these solutions, like let's GEO engineer, something, let's design some organism that succeed two out of the atmosphere. What, if we're too successful, we can't turn it off and all the co2 goes away we would die. We depend on the fact that we have a couple honey parts per million co2 in the atmosphere to keep earthworm enough. So a sudden decrease in co2 would be just as bad or worse maybe even then a sudden increase in co2. You need a certain. A range of co2, and you don't want to go too far out of that range in either direction. Awesome answer I love it yet, but would it help if we just saw hyper ventilated? You know
It may help you are here we go. This is from Ben Ratner, also from twitter. What have we learned about life in space that we have been able to use to improve life on earth? Well, I mean an overall sense, the perspective of thinking about life in space and how life works on planets in general has given us a lot of new prospects, If on life on our planet, but more specifically, we ve learned about things about how radiation effects organisms. We ve learned how to think about closed environments if you're going to design a space station you need to recycle. Everything will ultimately were realizing now that our own earth is a closed environment. We talk about biosphere, two aware here by Us here one bows re one is a closed environment and so just death. Thinking about how you would desire in space systems. I think really has made
smarter about realising that a certain sense we are in a in a space system. We are life in space, our planet is spaceship earth, and so some of those design problems turned back around and bus conceive of how we are going to survive for the long term on this space ship that we happen to have evolved on awesome. Great answer right. This one is from Beth Grace. The risk we are taking with our planet reflect sir, mindsets we have about natural resources and our relationships with other life. What lessons to you think we need to learn before we colonise other planets in order to avoid transporting the same patterns of mismanagement other worlds to really get question, because people tend to have as utopian view of our watches a common as other planets and everything will be fine, but course we're gonna bring our same mindsets and patterns there.
And ultimately do. We want to just turn Mars into a giant strip. Mall and Us Strip, mind disasters own and now, of course you know I'm I'm all in ever of humans going into space and exploring and leaving elsewhere, but but we can escape ourselves and ultimately, the lessons of how to live sustainably on a planet are ones that we're going to have learn and carry with us wherever we go in the universe, so there it is get it right at home. First then, take it on the road. This has been really fun. I think we're gone to wrap it up now. This has been star talk, radio, thank you so much for joining us today. I've had a great time here with with Chuck Chuck nice and chuck one more time. What's your twitter, you can finally adds up nice comic. Thank you.
And I'm doctor fund spoon and you can find out more star talk radio got that. Thank you so much for listening. We should listen. The star talk commercial, free, joint star talk on pay. For as little as five dollars per month and the ads will disappear. Learn more at patriarch dot com slap star, talk, radio,
Transcript generated on 2020-01-25.