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Scientist Calls Mars a Terraforming Target

Raver32 writes "Mars will be transformed into a shirt-sleeve, habitable world for humanity before century's end, made livable by thawing out the coldish climes of the red planet and altering its now carbon dioxide-rich atmosphere. How best to carry out a fast-paced, decade by decade planetary face lift of Mars — a technique called "terraforming" — has been outlined by Lowell Wood, a noted physicist and recent retiree of the Lawrence Livermore National Laboratory and a long-time Visiting Fellow of the Hoover Institution. Lowell presented his eye-opening Mars manifesto at Flight School, held here June 20-22 at the Aspen Institute, laying out a scientific plan to "experiment on a planet we're not living on.""

35 of 575 comments (clear)

  1. Go to Mars Quaid... by teknopurge · · Score: 5, Funny

    These guys obviously haven't seen Total Recall.

    1. Re:Go to Mars Quaid... by jollyreaper · · Score: 5, Funny

      These guys obviously haven't seen Total Recall. Would that I could say the same.
      --
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      This Mahdi took Shaddam's Throne
    2. Re:Go to Mars Quaid... by Doc+Ruby · · Score: 4, Insightful

      Yeah, why wait until we've actually surveyed it for an existing ecosystem or other signs of life, when we can ensure there is life on Mars, if that's all we care about?

      I mean, what value could learning about extraterrestrial life have, when it's at the closest planet for several light years likely to have some similar to ours? We'll study the next one, even though that means interstellar travel.

      We've proven how carefully we protect environments when we don't understand them, right here on Earth, right?

      --

      --
      make install -not war

    3. Re:Go to Mars Quaid... by MS-06FZ · · Score: 4, Insightful

      And you obviously never read "We Can Remember It For You Wholesale" or you'd look at that film differently ;-) "differently" from what? I mean, are you supposing that one cannot hold a positive opinion of the movie after having read the original story? Are you just venting the classic Philip K. Dick pet peeve, that all the movie adaptations butcher the story and miss the point? (If nothing else I enjoyed that the film kept the question of whether "Quaid's" adventure was real or not totally ambiguous...) Or are you just being a title snob? (*ehem* It's called Do Androids Dream of Electric Sheep? thank-you-very-much...)

      If the whole point of bringing up "Total Recall" here is just to joke about Martian Terraforming, then might not the movie be a better fit anyway?
      --
      ---GEC
      I'm but the humble pupil, seeking to snatch the scratchbuilt pebble from the master's fully articulated hand
  2. Re:Planting? by jimstapleton · · Score: 4, Interesting

    actually, it'd probably start out with photosynthetic bacteria, or plants that not need to be "planted", so much as just allow their seeds sit on the soil for a while.

    Still, the article is written by a physicist, I'd rather see a biologists perspective on this one, involving life and all.

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  3. Gee, Wally by brian0918 · · Score: 4, Funny

    Jeepers, what is this foreign concept called "terraforming" [that's been discussed for at least 50 years] - I'll try looking for information on this new resource called the Inter-Net and report my findings as soon as possible.

    Wish me luck.

    1. Re:Gee, Wally by jollyreaper · · Score: 5, Funny

      Jeepers, what is this foreign concept called "terraforming [wikipedia.org]" [that's been discussed for at least 50 years] - I'll try looking for information on this new resource called the Inter-Net and report my findings as soon as possible.

      Wish me luck. Step away from the computer, Mr. President. Here, I have a nice shiny thing for you.
      --
      Kwisatz Haderach
      Sell the spice to CHOAM
      This Mahdi took Shaddam's Throne
  4. Terraforming... by Notquitecajun · · Score: 4, Interesting

    I always wondered if terraforming could just be done my massive planting of hardy fauna. A ton of trees (like a rainforest), should drastically change even weather patterns...I always thought that it would be an interesting experiment for a lander to plant - and tend - some cacti or something and see what would happen over time.

    I do think that the time span is a bit idealistic, and doesn't account for the Law of Unintended Consequences, but the idea is sound.

    1. Re:Terraforming... by badasscat · · Score: 4, Interesting

      I always wondered if terraforming could just be done my massive planting of hardy fauna. A ton of trees (like a rainforest), should drastically change even weather patterns...I always thought that it would be an interesting experiment for a lander to plant - and tend - some cacti or something and see what would happen over time.

      The problem is you need to raise the temperature of the atmosphere in order for most anything to grow, because there's no precipitation. The cycle can't begin until you've done that first step.

      I haven't RTFA, but there was a show on Discovery Channel a while back where one of the guys who had designed a series of Mars missions for Lockheed/NASA back in the 80's (and he's still fighting for them) had proposed actually building a bunch of factories on Mars whose sole output would be greenhouse gases. Their entire purpose would be to just pump billions of tons of what we'd call pollutants on Earth into the Martian atmosphere. Supposedly you could raise the planet's temperature by 10 degrees over 100 years using this method, which would be enough to start releasing the water trapped in the ground as ice into the atmosphere, creating clouds and precipitation for plants. Then you could start planting forests, which would thrive in the CO2-rich Martian atmosphere and would begin to create the oxygen we need to breathe.

      Humans could live on Mars as the terraforming process was ongoing, but they would need to be in enclosed colonies until the process was complete. Eventually, though, they'd be able to venture out into an Earth-like world.

      I'm curious to see how the author of this article thinks the process could be sped up - the Discovery show said it would take thousands of years given current technology before the air would be both warm enough to live in and breathable for humans.

    2. Re:Terraforming... by nanosquid · · Score: 5, Insightful

      You really just don't get how hostile Mars actually is. On average, at the summit of Mt. Everest, air pressure is several hundred times what it is on Mars, and it's 60F warmer than on Mars, and nothing grows there. Antarctica is even balmier than Mt. Everest, and still nothing significant grows there. And those places at least have plenty of clean water.

    3. Re:Terraforming... by Minwee · · Score: 4, Funny

      Well, obviously you need to lower the temperature in your closet to about 63 degrees below zero and then pump out 99% of the air, simulating the ideal growth environment found on Mars.

      After that, just stick some seeds in and watch them grow.

    4. Re:Terraforming... by halivar · · Score: 5, Informative

      I'm only a lay-man, and I only know what I read in textbooks. If any of this is wrong, please correct me.

      Some problems with this whole scheme.

      1) Rich in carbon-dioxide, but only relatively. The atmosphere is so thin that even if the CO2 were converted to a more human-friendly mix, it's still too thin, and too cold.
      2) The atmosphere can't be enriched with more material because Mars can't hold it. Too gravity, and not a strong enough magnetosphere (which is how Venus holds it atmosphere).
      3) No internal dynamo. Mars has a cold core, leading the aforementioned problems.

  5. "Will"? by Phanatic1a · · Score: 5, Insightful
    Seems a bit too declarative, doesn't it?

    Mars will be transformed into a shirt-sleeve, habitable world for humanity before century's end, made livable by thawing out the coldish climes of the red planet and altering its now carbon dioxide-rich atmosphere.


    Mars doesn't have a carbon dioxide-rich atmosphere. Mars doesn't have an anything-rich atmosphere. Yes, what atmosphere Mars has is mostly CO2, but what atmosphere Mars has is actually a pretty decent approximation of vacuum; the thickest parts of it are barely 1% of typical atmospheric pressure on earth.

    The whole article doesn't actually include any specifics, it's just handwaving of the "and then a miracle occurs" sort:

    Overall, Wood said that a workable plan can be scripted to raise the average temperature of Mars, rid the world of excess carbon dioxide, as well as generate soil to support agriculture.


    Right. We'll get right on that. We only have 93 years to go, according to this article.
    1. Re:"Will"? by SetupWeasel · · Score: 5, Insightful

      "The specifics are out there"

      What does that mean? Mars doesn't have enough gravity to hold enough gas at its current temperature. If we warm it up, that problem increases. You can't just wish that problem away. Mars doesn't need heat or oxygen to be Earth-like. Mars needs mass.

    2. Re:"Will"? by dylan_- · · Score: 5, Interesting

      Actually, only partially correct. Yes, the solar wind will strip away the atmosphere, but it happens slowly. Over millions of years. If we develop the technology to introduce the atmosphere in the first place, we'll have no difficulty keeping it topped up.

      --
      Igor Presnyakov stole my hat
    3. Re:"Will"? by archen · · Score: 5, Interesting

      I have similar thoughts as well, but having gone over the scenarios a few times Venus has a LOT of problems that would be nearly impossible to overcome. Venus seems to have a problem that carbon was never sequestered into solids on the surface. In fact it looks like Venus, Earth, and Mars all started in very similar states, and that by simply being closer to the sun, Venus ended up with significantly more CO2 in it's atmosphere which lead to the runaway greenhouse effect. So unless we manually remove the CO2 (huge undertaking especially considering the atmospheric pressure of Venus) that's not going to change.

      The other major problem is that the rotation of Venus is extremely slow, thus leading to virtually no magnetic field. This means that it would be bombarded by extreme amounts of solar radiation on its surface if the atmosphere were cleared.

      I read an interesting book on terraforming the solar system, and the author purposed that we could crash a comet (or few) into Venus to supply water, help cool the planet, and jump start its rotation. Of course needless to say I'm not exactly sold on playing intergalactic pool with planets in our solar system :)

    4. Re:"Will"? by SatanicPuppy · · Score: 4, Informative

      The point behind Biosphere was to create a naturally self-sustaining system, so they weren't supposed to use CO2 scrubbers or any such similar technology. Additionally, it was determined that the concrete foundations were binding CO2 as they cured (concrete cures for years and years), causing still more problems.

      Blah blah blah. It was a total screwup, not just in management, but in pure conception. They needed to start with a working system and then figure out how to make it self sufficient, instead of starting with a system that they thought would work, and trying to live in it indefinitely. Does anyone really think we'd start off with a system that needed no outside inputs? It's not realistic. Basically the only thing they proved is that they didn't do very well at making a self-sustaining system.

      --
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  6. Then who owns Mars? by UbuntuDupe · · Score: 5, Interesting

    This is an interesting question for property rights theorists. Many people adhere to some sort of Lockean view that by modifying this untouched land, the terraforming organization then owns all of Mars. But then some would say it's a sort of "common heritage" that can't be so privatized. It's also extremely difficult to just terraform "one part" of Mars. (Imagine keeping one part at 1 atm and the rest at Mars's regular atmospheric pressure.)

    Regardless, anyone who goes through the expense of terraforming Mars, even a government, is going to want some assurance that the rest of humanity won't leech off their work.

  7. Two problems I'm not seeing addressed here by jollyreaper · · Score: 5, Informative

    First, Mars does not have a magnetosphere. This helps fend off the worst of the cosmic radiation here on Earth. What does he propose to replace it? The article is light on the details. Second, isn't the understanding still that Mars has insufficient gravity to preserve its atmosphere and so the solar wind strips the atoms and molecules right off the top, thus explaining the low pressure we see today? How do you counter that?

    --
    Kwisatz Haderach
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    1. Re:Two problems I'm not seeing addressed here by ekasteng · · Score: 5, Informative

      If I had mod points I'd give you one. If my memory is correct, Earth's spinning liquid metal core is what gives us our magnetosphere, and protects our upper atmosphere from getting "sandblasted" away by the solar wind. Mars doesn't have a magnetoshpere, which is the reason why some astronomers think its core has cooled and is solid. Without that magnetosphere, the solar wind will just blast whatever atmosphere we put on it away.

      --
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    2. Re:Two problems I'm not seeing addressed here by R2.0 · · Score: 5, Funny

      You are thinking way to small. We need to move Mars and Venus to the trailing Lagrange points in Earth's orbit. That will put them both in the water zone. Then, send a stream of comets from the Oort cloud to crash into Mars - just need to be careful not to miss. Venus just gets the good old fashioned algae/plants method of atmospheric reduction.

      By the time we use up Earth, Mars will be ready for wholesale migration, and by the time Mars is used up, Venus will be done simmering. By that time we will be assembling new planets from scratch with asteroids, Mercury, Pluto, Sedna, and whatever other junk we can find.

      --
      "As God is my witness, I thought turkeys could fly." A. Carlson
  8. Altering its now carbon dioxide-rich atmosphere by Malc · · Score: 4, Insightful

    If that's so easy, then I expect they'll be applying the same principles on Earth. No need to worry about global warming at home then?

  9. Global Warming by Anonymous Coward · · Score: 4, Funny

    So we are hesitant to raise the temperature of our own planet, but its the first thing we want to do to the new one!

  10. Erm... by rumith · · Score: 4, Insightful

    Why Mars? Why not Antarctic glaciers, Gobi desert, Kazakh wastelands, Belarus swamps and Alaskan tundra? Hey, the good old Earth has places that model the conditions of pretty much every planet you can imagine [hazardous included], except perhaps gas giants. Now, where do I go to have the illusion of being on the ancient Foth of Avalars...

  11. Getting off the rock by the_kanzure · · Score: 5, Informative
    Copied from my notes:
    • The Artemis Project - The project is a private venture to establish a permanent, self-supporting community on the Moon. Brief overview of the Artemis project.
    • The Mars Society - To further the goal of the exploration and settlement of the Red Planet.
    • The Moon Society - An international nonprofit educational and scientific foundation formed to further the creation of communities on the Moon involving large-scale industrialization and private enterprise.
    • National Space Society - grassroots organization dedicated to the creation of a spacefaring civilization. Magazine.
    • Stanford on the Moon (by 2015?) And yes, Stanford as in the university.
    • Space Frontier Foundation - seems to have projects for space colonization, missions to the Earth's moon, and so on. Looks like a large scale organization.
    • The Space Settlement Initiative
    • Space Access Society - activism for getting out of the NASA-only paradigm/reality.
    • Students for the Exploration and Development of Space - `... is dedicated to expanding the role of human exploration and development of space. We also seek to educate the public in such a way as to attain this goal. `
    • Space Studies Institute - `SSI's stated mission is: Opening the energy and material resources of space for human benefit by completing the missing technological links to make possible the productive use of the abundant resources in space.`
    • International Space University - `The International Space University provides graduate-level training to the future leaders of the emerging global space community at its Central Campus in Strasbourg, France, and at locations around the world. ` (mentions 'systems engineering' on the About page)
    • Space Settlement Institute - `The Space Settlement Institute is a non-profit association founded to help promote the human colonization and settlement of outer space. `
    • Cygo's Space Initiative - plan and conduct exploration missions to minor planets, build and mass produce (while in space) a multi-purpose interconnectable module, and to offer products and services using space and the materials therefrom.
    • Freeluna - `Freeluna.com is dedicated to the proposition that the colonization of outer space is critical for the long term survival of the human species, and that colonization of the moon and the exploitation of the moon's natural resources is one of the very best first steps in that incredible journey off planet.` ... and when I first visited this page, I was visitor #3371. Yikes. Contact: Bill Clawson, wclawson@freeluna.com
    • Island One Society - associated with the Artemis society, seems to be mostly a resource-help site.
    • The Living Universe Foundation - `The Living Universe Foundation seeks to bring the galaxy alive with life from Earth, while healing the damage that humanity has already inflicted upon the Earth. We believe that expansion into space in the immediate future is a step towards accomplishing this aim.` turmith@yahoo.com --- This organization was inspired by the publication of a certain book. This is heavily related to Project Atlantis or Oceania (artifical floatin
  12. Re:A warning to early terraformers... by jollyreaper · · Score: 4, Funny

    If you see any egg shaped pods, run away. Yeah, not sure if I could stomach any more seasons of Mork and Mindy either.
    --
    Kwisatz Haderach
    Sell the spice to CHOAM
    This Mahdi took Shaddam's Throne
  13. here's an idea by nanosquid · · Score: 4, Insightful

    Why don't we "terraform" the Sahara desert, the Gobi desert, Antarctica, and the various dust bowls around the world before trying to tackle Mars.

    Right now, we can't even keep existing, fertile land from turning into desert right here on earth, with plenty of water and air around.

  14. I hate to be negative, but by Progman3K · · Score: 4, Informative

    Mars will NEVER be habitable.
    We'd have to find a way to get its dead core molten and spinning again. Otherwise solar radiation will just flay off any atmosphere we try to put there.

    Maybe we could live on Mars in domes or sealed caves but I doubt we'll ever be walking about in the open on its surface.

    --
    I don't know the meaning of the word 'don't' - J
  15. really not so complicated by circletimessquare · · Score: 4, Interesting

    trace the evolution of the hudson bay company into modern canada: i don't see the mass of canadian citizens as serfs of a corporation. the colonizaiton of mars under corporate provenance would probably have a similar uncontroversial and mundane development arc. in fact, any such corporate colonization of mars under government oversight would probably consult a historical study of the hudson bay company directly as a model for potential pitfalls to avoid

    i'm sorry, but in reailty, the balance between individual rights and corporate provenance isn't so difficult or immobile. there is no massive conflicts, and the hudson bay company still exists today: what was once the corporate master of much of north america is now simply a department store. but of course, you read most science fiction, or talk to a paranoid schizophrenic, or even consult certain lowest common denominator youth subcultures, and you get the impression that corporations are these unstoppable sociopathic vampires out to turn you into an unthinking slave. hardly. reality is just not that interesting, sorry

    --
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  16. Robots Will Colonize Mars by Zobeid · · Score: 5, Interesting

    Terraforming Mars is neither necessary nor desirable. Within perhaps 50 years we could easily have human-level AI and advanced robotics. Such robots could be designed for the Martian environment as it exists now. It will prove much easier to adapt our descendants -- our mind children -- to Mars (and many other environments that are hostile to humans) than it would ever be to adapt Mars to us.

    In fact, the more optimistic transhumanists would tend to assume that people alive today may see a time when they can upload or upgrade into an advanced robotic form themselves -- so it wouldn't even necessarily be our remote sort-of-descendants who colonize Mars, it could be us, suitably transformed.

    Conventional wisdom is that Mars will be explored by robots, then colonized by humans. I turn that idea on it's head. Humans will explore Mars -- today's robotic probes are too crude and limited, so that a single manned expedition could do scientific work that would take decades, maybe centuries, with robots. The other side of that coin is that 50-100 years from now humans will become obsolete for space travel and colonization. The people who actually live on Mars and build a society there will be synthetic people, not homo sapiens.

  17. Re:Planting? by aldousd666 · · Score: 5, Insightful

    Are you guys kidding me? You talk about terraforming as if it's just another trick we have in our arsenal, which it isn't. But, the technology aside, there are other issues that will trump that. For example, what about the militant lobby of folks who will undoubtedly make this into 'the evil humans rushing out to screw up another planet after they can't even keep a grip on their own?' You think Eco Terrorism is bad now, wait until someone starts moralizing on the idea of just commandeering a whole planet for experimental purposes. I personally think that it's as good of a laboratory as any, but I really think this would make the alarmist triply so. Think about it, what about property rights, mineral rights, and political philosophy, the interaction of religious idiots, and the mass media distortion... It's all just a huge cluster fsck waiting to happen, which is why I think it will never happen. I'd hope it does, but I don't see anything able to surmount those socio-political issues any time in the next couple of centuries, let alone the next 93 years.

    --
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  18. Re:MARS! by doti · · Score: 4, Insightful

    where monkeys can spell

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  19. has been outlined... by The+Fun+Guy · · Score: 4, Interesting

    ... by Lowell Wood, a noted physicist and recent retiree of the

    This is the point at which I stopped reading TFA.

    A physicist talking about chemistry and biology, and a retiree talking about how easy/cheap/fast/simple it would be for you young people to do, if you only had the kind of vision we had back in the day.

    Sorry, I've known too many physicists. (and too many retirees...)

    --
    The man who does not read good books has no advantage over the man who cannot read them. - Mark Twain
  20. Re:Planting? by menkhaura · · Score: 4, Informative

    I believe the real problem isn't the climate, or the high carbon dioxide atmosphere; the real problem is that Mars's atmosphere is very low density. The air pressure in Mars (less than 1% of that on Earth according to Wikipedia) won't be sufficient for us earthlings to breathe comfortably if at all.

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  21. Re:Planting? by Smight · · Score: 4, Insightful

    Water vapor is much better at trapping infrared than CO2 is.

    Don't tell the folks making hydrogen fuel cells.

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