Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×
United States Transportation Science

The Most Detailed Map of Auto Emissions In America (nytimes.com) 153

The New York Times published findings from an analysis of new data released through Boston University's Database of Road Transportation Emissions. The map embedded in the report shows a year's worth of CO2 from passenger and freight traffic on every road in the United States. From the report: The database provides the most detailed estimates available of local on-road CO2 over the past three decades. Even as the United States has reduced carbon dioxide emissions from its electric grid, largely by switching from coal power to less-polluting natural gas, emissions from transportation have remained stubbornly high. The bulk of those emissions, nearly 60 percent, come from the country's 250 million passenger cars, S.U.V.s and pickup trucks, according to the Environmental Protection Agency. Freight trucks contribute an additional 23 percent.

Reducing emissions from driving has been a big challenge, said Conor Gately, who led the project mapping CO2 on America's roads as a postdoctoral researcher at Boston University. Emissions dipped during the recession of the late 2000s, but have been ticking back up since 2013. National fuel economy standards put in place under the Obama administration have helped temper the rise in automotive emissions because the rules require cars and trucks to use less gasoline per mile traveled. But even as vehicles have become more efficient, Americans, buoyed by a strong economy and low gas prices, have been driving more miles and buying more S.U.V.s and pickup trucks, which have lower gas mileage. Freight trucking is also on the rise. Boston University's emissions database, first published in 2015 and updated this week with an additional five years of data, reveals that much of the increase in driving-related CO2 has occurred in and around cities.
The report goes on to say that in nearly every metro area, total emissions have increased since 1990. "The New York area, home to 20 million Americans, accounted for the largest share of driving-related CO2," reports The New York Times. "After years of increase, emissions ebbed during the late-2000s recession but rebounded by 2017. In more car-dependent areas, like Dallas-Fort Worth, emissions from driving barely dipped during the recession and have increased rapidly in recent years. But, adjusted for population, these cities flip: Residents in the denser, more transit-friendly New York area contribute far less CO2 from driving on average than their counterparts in Dallas."

As for how the database was created, "Boston University researchers used federal traffic data to calculate the number of miles travelled on local segments of each road in the United States and converted those miles to carbon dioxide emissions by estimating how much fuel is consumed by different types of vehicles using those roads."
This discussion has been archived. No new comments can be posted.

The Most Detailed Map of Auto Emissions In America

Comments Filter:
  • Ok (Score:2, Interesting)

    by geek ( 5680 )

    Now do China and India

    • Re: (Score:3, Insightful)

      by Dave Cole ( 9740 )

      Now look after yourselves and fix the rising emissions in your own country. Let India and China do the same.

      • Re:Ok (Score:5, Insightful)

        by ShanghaiBill ( 739463 ) on Thursday October 10, 2019 @09:41PM (#59294594)

        Now look after yourselves and fix the rising emissions in your own country. Let India and China do the same.

        This is a silly approach. We need new technology, and it is best to develop that cooperatively.

        China is a leader in low cost solar and wind. They are making more EVs that the rest of the world combined. They build nukes for half what they cost in the west. They build high speed electric rail for a tenth what they cost in America. We can learn a lot from them.

        India is leading the way on research into thorium MSRs.

        We all share the same atmosphere, and we should work together to fix it.

        • Sure, we can have all those things as cheap as they do in China but we need to be willing to give up the American life in terms of wages, environmental protections, quality of living etc.
          • by Cyberax ( 705495 )
            Well, you'll give them up eventually anyway. Once the "great American way" collapses.
          • Re:Ok (Score:5, Insightful)

            by sjames ( 1099 ) on Thursday October 10, 2019 @11:39PM (#59294894) Homepage Journal

            The problem isn't wages. Labor only accounts for a tiny portion of the cost of most goods these days. I did the math recently,. and the iPhone would cost 6% more if the workers were paid $40/hr.

            • by AmiMoJo ( 196126 )

              The price of an iPhone has little to do with the cost of making it. It's all about how Apple can maximize profit.

              • This is true for virtually every product. The only reason why Android handsets are so cheap is because there's almost no way to maximize profit there with all the Chinese brands selling almost at cost, so they make up the difference in ad sales and services (and possibly more nefarious things for the ultra-cheap brands). Everyone is trying to turn a profit out there.

                I haven't seen the numbers for a while, but it wouldn't surprise me if Samsung were still the only other manufacturer making a meaningful profi

              • by ceoyoyo ( 59147 )

                Apple's raw margin on iphones is usually estimated as ranging somewhere between 50 and 65% depending on the model. Research, development, design, sales and distribution does cost something, so they make less than that in reality. It is fairly high for tech.

                Most non-tech retail considers 100% markup bare minimum.

              • by sjames ( 1099 )

                True, but I was assuming they would raise the price to make the same amount per unit sold. Otherwise, they could pay the workers $40/hr, reduce the retail price 40% and still make money on every sale.

              • The price of an iPhone has little to do with the cost of making it. It's all about how Apple can maximize profit.

                Which is the fundamental point being made. Don't for a moment think that the billions of dollars in cost overruns on nuclear projects and expensive transport boondoggles just evaporate. The CEOs of major construction companies don't inherit a new Ferrari from their father every year.

                I still remember working on an upgrade project for a reactor safety system. Holy shit did we have the best and most lavish parties that year, that contract was worth a mint.

            • by _merlin ( 160982 )

              You mean Apple's costs would be 6% higher, or $40/hour wages would be an increase of 6% of the retail price? At any rate, I don't think the retail price would actually change if the labour cost increased. Apple products are prices as high as the market will bear, so they can't easily increase the price. Increased labour cost would mean Apple would have to accept slightly lower profit.

              • by sjames ( 1099 )

                I mean if they hiked up the retail price by 6% they would make the same amount per unit sold as they do now.

        • by mjwx ( 966435 )

          This is a silly approach. We need new technology, and it is best to develop that cooperatively.

          Why?

          China and India are just buying the technology Europe has already developed. No need to reinvent the wheel as it were.

          What the US needs to do is give up on those silly notions that you need a huge car with a ghastly oversized and horribly inefficient engine. American cars seem to have engine capacity just for the sake of having engine capacity. A modern 2L turbo will outperform 4 and sometimes even 6L engines whilst delivering better fuel efficiency and that is before the weight savings.

          You don

      • If the US - heck, the US and the EU - cut all CO2 emissions to ZERO, we'd still have a rising CO2 level from the developing world. CO2 emissions from the US and EU are pretty much flat; the big jumps are coming from China, India, Africa, and the rest of the world. Our flat-lining is immaterial.
    • Comment removed based on user account deletion
    • Comment removed based on user account deletion
    • Re:Ok (Score:5, Insightful)

      by thesupraman ( 179040 ) on Friday October 11, 2019 @01:51AM (#59295050)

      Their per person emissions are much much lower than the US.. So what was your point? You feel that Chinese and Indian people dont deserve the quality of life Americans enjoy through their impressively high per person CO2 emissions?

      Flamebait? no, not really.. just an observation of your kneejerk reaction to try and move blame to others. but mod away, reality can be SO annoying.

    • by AmiMoJo ( 196126 )

      Pretty sure the Chinese government already has, and probably the Indian one too. Smog has become a big issue in those countries and they have been making a lot of effort to reduce it.

      Not being a democracy China can shut stuff down very quickly.

  • You want to take their cars? You'd better be ready for war. Real war.

  • I bought a Tesla Model 3 this summer. Hands down the best vehicle I've ever driven. And zero emissions!
    • I bought a Tesla Model 3 this summer. Hands down the best vehicle I've ever driven. And zero emissions!

      If we just bring this carbon neutral fuel technology to market then we can all be equally smug about how our vehicles don't pollute.
      https://www.forbes.com/sites/j... [forbes.com]

      We will still need a carbon neutral source of heat and electricity for this fuel synthesis process, just like we'd need it for any electric car to make that claim. It's a good thing that nuclear fission development is finally getting some help from the federal government.

      There's still plenty of work to do but it looks like there's plenty to be

  • That recent uptick...

    Everyone I know is buying SUVs because "gas is cheap." Thank goodness it always will be.

  • by packrat0x ( 798359 ) on Thursday October 10, 2019 @10:23PM (#59294726)

    The values weren't measured. They are estimates. This isn't science, it's playing with math.

    • by DogDude ( 805747 )
      The values weren't measured. They are estimates. This isn't science, it's playing with math.

      It IS science. When you can't measure something exactly, you use science to make good estimates.
      • The real question is whether the estimates are good or not. But to know that, you'd actually have to read the paper.
    • That's like saying their are chemicals in your food - chemicals like H20 and my personal favorite, C6H1206 (Glucose).

      I got news for your kid - almost everything you read about is estimates. And that does not mean it isn't science. Math estimates are an essential part of science.

      Everything from the age of the universe to the unemployment figures are estimates.

      If you want to claim they are BAD estimates based solely on the number of cars registered to the area, then you have something worth saying.

    • by AmiMoJo ( 196126 )

      It's perfectly reasonable to look at traffic density, which is measured, and extrapolate from that. Factor in the known make-up of vehicles in each state and their known emissions.

    • Well... sort of.

      The 'report' uses the Database of Road Transportation Emissions (DARTE) data for 1980 to 2017 (38 years) for 760,000 1km x 1km grid squares in the US.

      Traffic data comes from the Federal Highway Administration's (FHWA's) Highway Performance Monitoring System (HPMS), which are state and county level reports on roads given to the Federal government. These reports include estimates on average daily usage for sections of road. The report uses the daily estimate, multiplied by the number of days

  • In the USA!

  • Living in a nation where 99.99% of electrical power come from no-co2 I'm very happy to use my electric car to commute


  • I was recently in old Germany and drove a rental Fiat 500 in traffic there.
    With that, one thing came to mind - vehicle weight.

    To accelerate a vehicle to traffic speed, it takes a certain amount of energy or fuel depending on weight to put up to speed. Then, at a stop light, the vehicle comes to stop by breaking. The energy put this into speed is taken from burning fuel more or less efficiently. Then, when applying brakes all this kinetic energy is converted to heat.

    Looking at the traffic here in the US comp
    • I nominate this for the Captain Obvious award of the day.

    • by DogDude ( 805747 )
      Seems bigger is better but much more impact on environment.... any awareness present on that?

      Yeah, but people just don't care about anybody else. They're just selfish.
      • They care about specific other people they know personally.

        But generally, people don't care about anonymous strangers. That's just human nature.

        They do care about how much they pay for fuel. So tax the fuel in proportion to the amount of harm burning it does to other people.
    • Some of that braking energy can be recaptured and re-used in electric and hybrid vehicles. The equation is the same of course, stop and go is terrible for fuel economy, that's just physics. It can simply be less bad.

      Unfortunately if you live in a place with poor to non-existant city planning, or places were local businesses who don't like people whizzing by their brick and mortar stores have strong influence in it *cough* Texas *cough*, that ends of creating a bad scenario. Even gas cars can be much more ef

      • by no-body ( 127863 )
        <quote><p>Some of that braking energy can be recaptured and re-used in electric and hybrid vehicles.</p>:</quote>

        Yeah, a test was done by a radio station on a smaller electric car driving driving close to it's max range and .... arriving at the end, unable to go too fast because this would use up too much battery resource, then needing to recharge, all the recharge stations were occupied. Another possibility would have been going into a parking-garage but that would have cost an add
  • First, it's not a map of "auto emissions", it's a map of how many vehicles are on the roads. Even the summary says so.

    They don't seem to account for a hybrid using less fuel than a regular vehicle, or an EV having zero emissions. Just how many cars and trucks.

    Second, when people say "auto emissions"
  • by OldMugwump ( 4760237 ) on Thursday October 10, 2019 @11:30PM (#59294876) Homepage
    [Bah, I'll try again]

    First, it's not a map of "auto emissions", it's a map of how many vehicles are on the roads. Even the summary says so.

    They don't seem to account for a hybrid using less fuel than a regular vehicle, or an EV having zero emissions. Just how many cars and trucks.

    Second, when people say "auto emissions", they normally mean pollution, not CO2. In a sense CO2 is pollution (insofar as it contributes to global warming), but it's not the kind that causes haze, smog, dirt, or damages lungs. And tracking CO2 takes no account of some vehicles producing a lot more pollution than others for the same amount of fuel consumed - the worst offenders are diesels and gasoline vehicles in poor tune (belching out a lot of unburnt hydrocarbons).

    To be meaningful as a measure of "emissions" you'd have to account for fuel efficiency (hybrids, EVs, etc.) and for fuel type and vehicle maintenance.

    I call shenanigans.
  • I'm a libertarian/right type, but I like this map. My opinion is partially skewed by the fact that all liberal cities outside California have had higher increases than my own area (San Jose even reduced emissions, good job!), but even so, the biggest source of road transport emissions is the trucking industry. Move that onto trains and we're in good shape (the US railroad industry is best in the world for freight transportation).

    Closing coal and oil power plants in favor of nuclear and natural gas (or hyd

  • Again we see another entry to Slashdot discussing the problem of emissions from fossil fuels. Isn't there any news on how people are working to solve this? I thought I'd do a search to see if there was. Here's an interesting article I found.

    https://www.forbes.com/sites/j... [forbes.com]

    Based in Canada, Carbon Engineeringâ(TM)s Direct Air Capture system directly removes CO2 from the atmosphere, purifies it, and produces a pipeline-ready compressed CO2 liquid using only energy and water. This CO2 can be combined with non-fossil fuel-generated hydrogen, to produce ultra-low carbon intensity hydrocarbon fuels such as gasoline, diesel, and Jet Fuel-A.

    Wow! Someone is making carbon neutral fuels, which are one-to-one replacements for the fuels we use now. No need for new engines, or a new fuel distribution system, it just works!

    Oh, wait, how much does this cost?

    These fuels can presently be produced by Carbon Engineering for less than $4/gallon, making them slightly more expensive than fossil fuels, but similar to biofuels. Low-carbon mandates and fuel standards make them very competitive with any fuel.

    And the costs will continue to come down.

    Why isn't this a to

    • These fuels can presently be produced by Carbon Engineering for less than $4/gallon

      That's pretty good, but do they take the cost of hydrogen into account? If you're generating it from excess power it should be nearly free, but the current reality is that hydrogen at the pump is rather expensive, even more expensive than our heavily taxed fossil fuels (in terms of €/km). And electrolised hydrogen is the most expensive variety of all; most hydrogen comes from steam treated natural gas.

      • That's pretty good, but do they take the cost of hydrogen into account?

        Of course.

        If you're generating it from excess power it should be nearly free, but the current reality is that hydrogen at the pump is rather expensive, even more expensive than our heavily taxed fossil fuels (in terms of â/km). And electrolised hydrogen is the most expensive variety of all; most hydrogen comes from steam treated natural gas.

        Bottled hydrogen is expensive because hydrogen is difficult to store and transport. With these synthetic fuel processes the hydrogen is produced as needed from electrolysis, there's no expensive bottling of the hydrogen involved.

        There's older videos on YouTube showing people working on the US Navy fuel synthesis project that claimed $6/gallon for aviation fuel delivered to the fleet. The higher costs was based on an estimate from the process they had at the time, and using only electricity to ex

        • We very likely will develop this technology and put it into production, but for commercial and military uses, NOT for fuelling private transport. Well except in the short term. We don't want to be burning petroleum products inside cities anymore, and electric cars do actually suit most people's lifestyles, it's only the cost that's the barrier in most of the cities of the world. In the short term however, there's still going to be loads of diesel cars on the rods to get people around, and when major cities
  • Shouldn't they be measuring a dangerous gas called carbon monoxide instead of worrying about an inert, harmless gas produced by human exhalation?

  • I can't see it unless I allow a tracker up my asshole. Fuck the New York Times
  • Would it be possible to not use TFAs from sites that require people to log in to even see TFA?

    I mean, we object to being tracked everywhere we go on the web, and then reference articles that require that we be tracked. Can we have a bit of consistency?

  • They're showing an 11% rise *per person* in my area since 1990. That makes zero sense since cars have become considerably more efficient since then.

    • Cars may have become more efficient, but, if I had to guess, I'd say that commutes have become longer. A major driver (pardon the pun) of longer commutes is lack of affordable housing close to where work can be found.
  • Whoopee friggin' do! There's nothing revelationary about this. What it does illustrate is that the urban centers, who generally vote left, are the ones spewing the most hot air, I mean, pollution.

Suggest you just sit there and wait till life gets easier.

Working...