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Ask Slashdot: Would Rationing Air Travel Work To Cut Emissions? 347

united_notions writes: Last year, The Guardian ran an opinion article arguing that everyone should be allocated "an air mile allowance -- say enough for one long-haul return flight a year, or three short-haul flights. [...] If you don't want to use your allowance, you could sell it off in a government-regulated online marketplace. If you're keen to do a holiday a month, you'll have to buy your allowance from someone else." But despite continuing concerns over the environmental harm caused by air travel, this idea has not found much subsequent support. Instead, serious air time is given to meager plans like weighing passengers. Do Slashdotters think rationing would work? Could serious coordinated inter-governmental restrictions on air travel change our behavior? Might it just spur corporations into finishing up carbon-neutral passenger planes?
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Ask Slashdot: Would Rationing Air Travel Work To Cut Emissions?

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  • Socialism (Score:5, Insightful)

    by Anonymous Coward on Monday May 20, 2019 @08:53PM (#58626792)

    Requires rationing for everyone except the socialist leaders.

    • Re: (Score:3, Insightful)

      by AmiMoJo ( 196126 )

      What does rationing have to do with socialism? Lots of non-socialist governments implement it, e.g. in the UK we had rationing during WW2.

      If you accept that there is a serious climate emergency then there are plenty of non-socialist reasons for rationing.

    • This isn't socialism it is just gross stupidity.
  • by presearch ( 214913 ) on Monday May 20, 2019 @08:57PM (#58626818)

    There's a system in place that rations air travel. It's called "money".

    • Re: (Score:3, Interesting)

      by AmiMoJo ( 196126 )

      The problem at the moment is that it punishes people who fly occasionally or because they have little choice (e.g. they need to visit family members), while having relatively little effect on people who fly a lot for business reasons and the like.

      Business reasons are often pretty weak, a lot of that stuff could be done via video link these days.

      It would also help if decent alternatives were available. When high speed rail is done well it can replace a lot of domestic flights, for example, but for some reaso

    • This. Price in the carbon somehow. Airlines will already be required to include carbon offsets in the price of tickets within the next few years. It doesn't have to be complicated or draconian.

  • How stupid... (Score:5, Informative)

    by LynnwoodRooster ( 966895 ) on Monday May 20, 2019 @08:58PM (#58626822) Journal
    On average, airplanes are quite efficient per passenger mile [energy.gov]. I guess I could stop flying to SF every couple of weeks, and drive instead - and greatly increase my emissions. And waste an extra 8 hours per trip, too...
    • Re:How stupid... (Score:5, Insightful)

      by dbett_slightreprise ( 5975582 ) on Monday May 20, 2019 @09:21PM (#58626986)
      The law of unintended consquences. You would think that all the would be social engineers would figure it out after a while. But nope. They keep thinking that THIS time their brilliant plan to remake society will work just as they planned.
    • Re:How stupid... (Score:4, Insightful)

      by Ichijo ( 607641 ) on Monday May 20, 2019 @09:21PM (#58626988) Journal

      Electric bullet trains are far more fuel efficient than airplanes, about 300-500 passenger-MPGe versus about 80-100. So if this plan were adopted in the USA, I think we would see bullet train lines criss-crossing the nation. It would be glorious!

      • Re:How stupid... (Score:4, Informative)

        by LynnwoodRooster ( 966895 ) on Monday May 20, 2019 @10:18PM (#58627288) Journal

        LOL - California tried that, and after coming up with $100 billion cost for LA to SF (and no way to actually ROUTE the train to LA), they gave up. I like my trains, but for long distances, it's hard to beat a plane.

        Even when I'm in China, and can take a high speed (300+ kph) train from Shanghai to Shenzhen, I still fly because it's 4 hours (including 1.5 hours before and 30 minutes after the 2 hour flight) versus 9 hours by train. And it's about the same cost (1000 RMB for the flight, ~1000 for the train).

        If the US was small and just the size of, say, France, Germany, or Japan, that's an entirely different question. But given it's ~500 km between SF and LA - and that's only about 40% of the length of the State - it's hard to make the case.

        In any event, airplane travel is actually quite energy efficient, all things considered. Much better than most other options for most people, especially those who have to fly more than a few hundred km...

        • LOL - California tried that, and after coming up with $100 billion cost for LA to SF (and no way to actually ROUTE the train to LA), they gave up.

          Which I still don't understand how....

          But instead of taking an obviously botched project as baseline for estimations. Munich - Berlin was build for EUR 5 billion for 200 km (LA SF with ~500km should be in the 15 bn rather than 100bn ballpark) and this was already considered expensive. Long distance connections in a straight line across the flat midwest should even be cheaper.

          And considering the long distances to be covered, alternative tech may get into the sensible price/performance range.

        • by Ichijo ( 607641 )

          $100 billion cost for LA to SF

          $79.1 billion, and part of that is inflation. How much do you think adding a runway to SFO or SJC would cost?

          Shanghai to Shenzhen...

          That's 1,600 km by train, too far for HSR to compete with flying. SF to LA is a much more sensible distance for HSR.

          • $79.1 billion, and part of that is inflation. How much do you think adding a runway to SFO or SJC would cost?

            Heathrow's runway expansion is estimated at about £14bn ($17.78bn). It's adding its third runway which would provide an additional 50% takeoff and landing slots.

            SFO operates four runways at the moment but they're not at slot capacity. Not all runways at SFO are long enough (3,618m, 3,469m, 2,637m, and 2,332m) to handle all the planes that fly in and out of the airport. Some planes can takeoff and land at the long and short runways, some can only takeoff and land on the longer ones, and some planes can

      • Electric bullet trains are far more fuel efficient than airplanes,

        Not when you are crossing an ocean.

  • by Ashthon ( 5513156 ) on Monday May 20, 2019 @08:59PM (#58626832)

    Like most plans related to climate change, this is merely another form of wealth redistribution. It would involve wealthy people who can afford foreign holidays giving money to poor people who can't. It's pure socialism and would do absolutely nothing to reduce emissions.

    This is the case with most policies related to climate change, and climate change is merely a vehicle used to push socialist policies. We hear all the time about how we have to give money to the third world to "pay for the cost of climate change" or about how we must allow people from the third world to come to Europe because they're "climate refugees." For many on the left, climate change is much more about pushing socialism than it is about the environment.

    • by Krishnoid ( 984597 ) on Monday May 20, 2019 @09:11PM (#58626936) Journal

      It would involve wealthy people who can afford foreign holidays giving money to poor people who can't.

      Replacing multiple people flying with one person flying -- where that one person isn't going to be flying any more than they would have been anyway.

      It's pure socialism and would do absolutely nothing to reduce emissions.

      It's pure mathematics, in that one person who would fly that amount anyway will still do so, and the people who sold their credit, won't.

    • by Ichijo ( 607641 )

      What should we do about our CO2-emitting, socialized roads?

  • by crow ( 16139 ) on Monday May 20, 2019 @09:01PM (#58626842) Homepage Journal

    This is a really stupid approach to managing carbon reductions. We could go on and on and on finding different activities that produce CO2, and create rules for each of them, and it would be an ineffective nightmare.

    If we're going to get a handle on it, we need to simply tax carbon emissions. In most cases, this can be implemented as a tax on the fuel. The amount of CO2 produced is easy to calculate for any given fuel.

    (Very roughly, the carbon from the fuel mixes with oxygen from the air to produce CO2, so most fuels, being primarily carbon by weight, will produce on the order of triple their weight in CO2. But obviously we can do the math correctly for each fuel.)

    A carbon tax lets the market shift as appropriate. Instead of regulating air travel directly, a carbon tax builds in the price of the emissions into the cost of the tickets without the need for any fancy regulations. It creates financial incentives to make all travel more efficient and creates incentives for renewable energy.

    • by CyclistOne ( 896544 ) on Monday May 20, 2019 @09:39PM (#58627108)
      I agree with this . Institute the carbon tax at a rate which would allow elimination of the payroll tax, thus making the change revenue neutral.
      • by crow ( 16139 )

        Using it to replace the payroll tax is questionable, especially given that the goal is to change usage such that the tax revenue should decrease over time. That said, I have no objections in principle to the idea of redistributing the revenue in a basic income sort of system such that it is revenue neutral.

    • by havana9 ( 101033 )
      Exactly: increasing fuel taxes it's an easy and simple to implement measure. It also steer people to buy more fuel-efficient vehicles. This could also help in general to push the transition to electric, both for private and public transportation.
    • Indeed - seeing planes leaving when actually full, rather than empty "otherwise we'll lose our slot" would probably do more for carbon emissions than rationing.

      Airport taxes ought to be per-plane, rather than per-passenger. Since you can't know how much tax to charge until the flight leaves, that does present a billing problem, which could be overcome by estimating (based on previous performance) how full the plane you're booking is likely to be (or else having some sort of complicated pay a bit now to book

    • There is one problem with carbon taxes in that they tend to hit the poor a lot harder than the rich, since the energy costs of manufacturing & transporting cheap goods are roughly the same as expensive ones, making for a much greater percentage of the total costs.

      However, if you redistribute the carbon tax revenue equally across the population, instead of into government coffers, that problem disappears. Anyone whose carbon consumption is below average comes out ahead, while still maintaining pressure

  • by bobstreo ( 1320787 ) on Monday May 20, 2019 @09:02PM (#58626850)

    How can I, who never travels by air. make money from this?

    The next question is, would controlling ocean shipping and long distance trucking do more to reduce carbon emissions?

  • I fly from Portland to San Francisco at least once a month, sometimes more.

    If I had a cap of 3 short-hauls/year, I'd just switch to driving (not the bus, not the train, but driving my single-passenger car). Air travel is already more fuel efficient than a typical single-passenger car, so that would just increase my carbon footprint.

    And how would you account for business vs personal travel? If my employer sends me on 3 shorthaul trips, then I have to cancel my European vacation plans or purchase a long-haul

    • If my employer sends me on 3 shorthaul trips, then I have to cancel my European vacation plans or purchase a long-haul flight allowance from the market place?

      Wouldn't the employer have to pay for the flight allowances?

    • You'd fly just as much using credits your employer buys. Business flight miles will be limited only by their willingness to pay for for the flight credit taxes.

      The tax money will go towards whatever party's politicians decide to earmark it for, like investment tax credits to airlines for studying how to make self-flying electric airplanes.

      Individuals will NOT be allowed to sell their credits. Smoke 'em if you got 'em.

  • by Applehu Akbar ( 2968043 ) on Monday May 20, 2019 @09:06PM (#58626888)

    Instead of having your People's Commissars wrangle over such minutiae as how much vacation time each plebeian shall be allowed, impose a revenue neutral carbon tax on human activity. Activities that generate carbon net of an activity average would be taxed progressively according to the amount of carbon each usage emitted per taxpayer, while activities of the same category as each carbon producer (transportation, power generation, food production, etc.) that reduce carbon from the activity average would be subsidized from the revenue, again progressively according to the amount of carbon each activity saved per taxpayer.

    Such a tax would not only incentivize carbon reduction with a minimum of direct government involvement in the economy, but would be self-liquidating as the net carbon output of each activity type goes to zero.

    • by oic0 ( 1864384 ) on Monday May 20, 2019 @09:44PM (#58627130)
      You're proposing that we give the government more tax dollars and then expect them to allow that new revenue to decline year over year? Thats not how government works. They never give up anything they've gotten hold of whether that be power, money, land, etc...
      • That's why you don't want a carbon tax that just goes to general revenue. That would put the government on the side of generating more carbon.

  • Introducing a cost to air travel that goes to people who don't use it is wealth redistribution, the worst and scariest thing people with enough money to buy laws can imagine. Nevermind that the massive supply means your miles would be worth about three cents; any flow in the reverse direction is inexcusable. No wage, only spend.

  • Yes, I do understand that we all enjoy our air travel, but there's a rather simple and obvious answer to this.

    Raise the price.

    Air travel used to be rather luxurious. I don't mean to make it only affordable for the elite, but if your intend is to curb demand, that's the fastest way to do it. Besides, advertising $19 plane tickets only to find another $200 in fees buried in the fine print is the kind of bullshit marketing that needs to be outlawed.

  • Ridiculous! (Score:4, Informative)

    by King_TJ ( 85913 ) on Monday May 20, 2019 @09:10PM (#58626922) Journal

    Like a previous poster said already, this is just another artificial wealth redistribution scheme. None of these have proven to make a lot of sense or really change behaviors in significant ways.

    A good example are the solar reclamation credits (or SRECS) implemented in some states. If you invest in solar, you can sign up so you earn these SRECs based on how much power you generate. Then, they make their state utilities buy the SRECS from clearing-houses in sufficient quantities to cover penalties they incur if they don't use "Green" energy methods to produce all of their power.

    In reality, it gave early adopters of solar some money that helped offset their installation costs, by making the utility companies help pay for them. It was kind of a pyramid scheme too, since the early adopters, showing off their SREC quarterly checks for hundreds of dollars convinced many others to buy solar. And the more people got online with it, the more saturated the market was with more SRECs than the utilities required. So their value plummeted. As far as it making everything more "Green"? Nah, not so much. The utilities are going to keep on using the existing power generation sites they've got, since they were hugely expensive to build initially and need to run for X number of years to break even and become profit centers. They'd rather pay for the SREC offsets and pass some of the costs on to customers than take out huge loans to build new "Green" generation plants that replace good, working natural gas or coal fired plants. In fact, all the individuals and businesses with rooftop solar are using LESS of their billable electricity, so that lack of demand growth makes even MORE of a case for them just keeping their status quo plants in service.

  • Let's incentive all greenhouse gas-creating activities. Give everyone a basic ration of gasoline and charge extra after that. Charge extra for setting the thermostat above 65 F in the winter and 78 in the summer. A surcharge for more than 3 Amazon Prime delivery per month. A beef surcharge for more than 2 lbs per month. Etc, etc, etc. If you start this, there's no end.
  • by guruevi ( 827432 ) on Monday May 20, 2019 @09:13PM (#58626946)

    Government involvement is never a good idea. Look at the USSR, they had rations on everything from cars to food. It didn't help because people inherently will avoid these artificial barriers, instead they created a black market for food, a black market for cars etc.

    The US had the same problem with prohibition and currently with many drugs, you regulate people out of the market so they'll create an unregulated market.

  • Unless you allocate fewer miles as a whole than are currently being flown or disallow buying and selling.
    If there is excess, it's nothing more than a money distribution system.
    It would be more effective to just add a seat tax.

  • by xtal ( 49134 ) on Monday May 20, 2019 @09:52PM (#58627164)

    Restricting travel is a big step down the road to fascism.

    You want to live your life, you do just that. When you start telling me how to live mine, we're going to have a problem, in a hurry.

    • Restricting travel is a big step down the road to fascism.

      That depends. Were we fascist 20 years ago when air travel was "restricted" to the wealthy? Air travel has become comically and disproportionately cheap. I booked a flight from Amsterdam to Vienna for less than the cost of dinner (35eur) recently to go to a birthday party, and not a big one like a 30th.

  • by Anonymous Coward

    Cargo container ships are the single worst offenders on the planet.

    Until you fix them, literally everything else you are doing is, in the words of the minister of Rock Ridge... is "just jerking off".

  • The problem is the combustion of fossil fuels, which is not directly coupled to air travel.

    What you want is a tax on fossil fuels, and then let the market sort out plane size, route selection, fuel efficiency vs travel time, supplementing with bio-fuels or even generating aviation fuel from water with electricity when electricity is very cheap ... perhaps when renewables are over-generating.

    And all that stuff.

    It also keeps other methods of travel in line, and doesn't bias the selection of alternatives to travel.

    Regulation isn't as economically efficient as a tax, because it generates complicated systems of gaming it.
    • wrong, we don't want that.

      adding costs to every working person's life is not a solution.

      only making alternative power sources is a solution.

      get your fucking hand out of my pocket, you parasite.

    • Planes are more fuel-efficient, per passenger mile, than buses, cars, motorcycles, and many trains (at least in the US). If you want to reduce emissions, you should SUBSIDIZE flights of the 300-1000 mile range, to discourage people from driving or taking a bus.
    • >"The problem is the combustion of fossil fuels, which is not directly coupled to air travel."

      That is part of the problem. The creation of the devices, the infrastructure, and the running of the machines that combust fuels- regardless of the fuel, all that adds to the actual total carbon use. I read some electric cars emit more CO2 over their life than some ICE ones. Why? Because the construction used more CO2 and the electricity the electric car uses still comes mostly from CO2 sources (perhaps bett

  • The epiphany [killyourdarlings.com.au]

    The buzz of richiness [refinery29.com]

  • There's an economically sound method for adding the externalities of CO2 emission back into prices. It's called a carbon tax. Yet some whackadoodles came up with this crazy scheme because... they don't like the "tax" part?

    It's likely unconstitutional in most western democracies, wouldn't have any effect on the biggest CO2 contributors, would require crazy amounts of tuning to work at all, and would be massively expensive and otherwise nightmarish to actually implement.

  • 1) Cap emissions at a safe level.
    2) Trade credits.

    Let the market figure it out. If that means using out carbon allotment... great. If we decide we would rather run server farms and skype. Great.

    Why would we tackle carbon emissions on an industry by industry basis.

  • There are lots of ways to reduce CO2 emissions. Could ban the sale of all fossil fuels for example.

    The trick is finding the approach that minimizes the overall cost / economic impact relative to the amount of reduction - including evaluating secondary effects. Finding that requires actual *science*, *engineering* and *economics*. Not just clever ideas.

    My guess is that greatly reducing air travel will cause a lot of economic disruption because at least in some countries tourism / business visitors bring

  • That get flown to global warming conferences, right?

  • Many people can notice that the air travel times have increased. This is due to higher efficiency of slightly slower speeds compared to top speed cruising. This and packing people like lunch meat among others contribute to much higher fuel efficiency in air travel.

    Until we can get real zero emission vehicles with long range, and can convince people to take 8 hour trips instead of the regular 2, this would not be carbon saving at all. It will push people to lower efficiency means of travel.

  • Aren't jet engines massively inefficient even though they're powerful? Regardless we need to replace internal combustion technology with something else that doesn't require burning fuel to produce energy.
    • by jwhyche ( 6192 )

      Well they are not massively inefficient or we wouldn't use them. What they are is inefficient at sea level. The higher you go the more efficient they get. At least when compared to spinning airfoils.

      I'm going to disagree with you on the replacing the internal combustion engine. It's not the engine itself, but what you burn in it. Fossil fuels such as gasoline suck. But there are cleaner fuels, natural gas comes to mind. I believe alcohol and biodiesel are also a clean alternative.

      The holy grai

  • The sane way would be to stop subsidizing the airline industry and simply make them pay for the damage they cause, for example by how much CO2 they emit. That way ticket prices would increase dramatically, in particular for airlines with inefficient planes.

  • Why single out air travel and leave out everything else?

    - Restrict the use of cars for all trips less than 10 km/6 miles. Buy a bike instead.
    - Require that everyone lives within 10 km/6 miles of his place of work.

    According to this (https://www.maritime-executive.com/article/transport-uses-25-percent-of-world-energy) cars and other small personal vehicles use ~47% of all energy used in transportation. Most of those cars are either moving minimal distances, meaning a less polluting form of transport would hav

    • - Require that everyone lives within 10 km/6 miles of his place of work.

      I like this one!

      We get to feel good about ourselves while at the same time enslaving the majority of the population - after all, who can afford to change jobs if it requires buying a new house?

    • - Restrict the use of cars for all trips less than 10 km/6 miles. Buy a bike instead.

      Please explain how you would accommodate children not yet old enough to be cycling on public roads.
      Please explain how you would accommodate commuting to and from work during a thunderstorm.
      Please explain how you would cover the cost of retrofitting all intersections with demand-actuated signal sets to detect bicycles. I've seen traffic signal sets that alternate between the (primary) cross street and a green left turn arrow for oncoming traffic for upwards of eight minutes, not giving my lane a green light

  • To prevent a 2C increase*, a person's annual CO2e needs to be about 2.1 tonnes. https://iopscience.iop.org/art... [iop.org]

    A single roundtrip transatlantic flight is about 1.60 tonnes CO2e https://interactive.guim.co.uk... [guim.co.uk] - more than half your CO2e budget for an entire year.

    To prevent making the biosphere uninhabitable for humans and most other species, simply jail for omnicide everyone who exceeds their CO2e budget.

    *2C is actually too high, since it doesn't seem to be sustainable - so the target should be less than

    • I absolutely love how you leave out having children, which come in at a whopping 58.6 tons of CO2 on your chart. What you are basically saying is that only one person in 28 should have a child - and that child will use the entire CO2 budget, so those 28 people should be using no energy whatsoever for the rest: no planes, no cars, no airco, not even electric lighting or cooking.

      Anyway, good luck with jailing everyone who has even one child, or owns a car (it's also on your chart), or does not line-dry their

      • You're correct that such laws are unlikely to be voted for, and it's unlikely people will reduce their CO2e emissions to prevent the collapse of the biosphere.

        You're not correct about the 100% tho - there are many people who remain child-free, flight-free, car-free, locavore vegan, etc., because they're not omnicidally psychotic.

  • but when you allow the option to buy flights from people who don't use them, the idea falls appart.

  • "everyone should be allocated "an air mile allowance -- say enough for one long-haul return flight a year, or three short-haul flights"

    Again, the craziest retards, not focusing on cutting back the biggest pollution sources and the biggest polluters first, but concentrating on those who are easily f*cked with lobbied legislation: the common people.

    The only good size: I don't see legislators trying this prank staying in power for too long.

    Limiting travel? Yeah, I have historic memories of such moronic m
  • I fly about as much as a penguin, so I'm all for it. I'd be happy to sell my unused air travel allowance to someone else and pocket some money from it.

    And I'm not opposed to flying - I don't mind it on the rare occasion that I do it - I just don't have any place to fly to that I want to go to and can afford to visit.
  • with driving. Preferably in a big SUV.

    Yup, that will work.

  • It would make air travel more expensive, so that might slow down the rate of consumption. But, if your fantasy is about rationing, why not just ration fossil fuels? And, while you're at it, ration baby making. The fact is that unless you can afford to buy more politicians than the people you fantasize about regulating, whatever scheme you invent is pure mental masturbation. It can be fun sometimes, but that personal enjoyment constitutes the entirety of the result.
  • Lots of people almost never fly and would just sell their allowance.

    So this is equivalent to basic income to everyone + tax on air travel to finance this basic income.

  • to drive in cities, then tolls on all the roads, and now rationed air mileage. The 0.1%ers are setting up the world so that they can go wherever they want, whenever they want, without the delays and discomfort caused by the other 99.9% of the world.

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