Keystone pipeline shut after spilling 1.4M litres of oil in North Dakota
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Some would argue we shouldn't be using oil in the first place now that we know the true cost. And those people are right. But when it comes to disincentivizing oil, I'd much rather see the externalities priced into fossil fuels through carbon taxes, ramped up incrementally over ten years. Let the market work its magic once the true cost is accounted for. People will switch so fast to greener alternatives it will make your head spin.
https://en.wikipedia.org/wiki/Lac-M%C3%A9gantic_rail_disaste...
1. It's not as trivial as that for a Canadian tar sands operation to send oil by truck into the US to some port. 2. There are alternative routes for pipelines. Some areas struggled against pipelines and they were rerouted in a way which doesn't threaten their area. Of course this can threaten some other place, but not every piece of land is the same. 3. Instead of trucks, the pipeline-laying entity may consider safer dual-pipe solutions which will, effectively, not leak. 4. You're only saying that there's another parallel struggle, which is preventing regular oil transport by truck because it's unsafe. Well, possibly. 5. Prices are not set according to what we believe they should be set, but according to various relations of power in society (including but not limited to supply, demand, ability to pressure the state etc.); this is doubly the case for strategic resources like oil, where there's a literal international body for price-fixing...
“burn _more_ oil”. It also takes energy to move oil through pipelines, but given that we want to move lots and lots of oil between two fixed locations, building a pipeline and pumping the oil through it is cheaper than building rail tracks or roads and using trains or trucks (I would hope and expect it also uses less energy, but that isn’t necessarily true; having to pay train/truck drivers may be the deciding factor)
(Yes, I know the answer: It would cost more and oil execs and investors never go to jail for polluting.)
The area between the double-walled pipes is called an interstice, and that's how leaks are detected. Additionally the interstice drains to a containment sump, so if any liquid is present, the leak is obvious, but there are sensors there too.
Fuel is more corrosive than crude oil. However the sludge in crude can cause pitting corrosion over time. These systems are built such that corrosion and leaks are expected and inevitable. Gas stations and places like data centers, or anywhere with fuel storage or dispensers must be inspected monthly for this reason.
Source: I work for an environmental compliance company, and built software to model and report on these types of fuel storage, transport, and dispensing systems.
(3) the volume and speed of material in pipes is immense. The void space between pipe layers would have to run continuously for the length of the pipe. Any blockage or constriction would produce a water hammer effect, turning one leak into many. A cracked pipe is bad, but a double-layered pipe exploding because of a crack miles upstream is horrible.
What fills this void space? Air? Air plus hydrocarbon in an enclosed/hot environment?
They are fixed together in some places, and able to slide relative to each other in most places. Fixed points are located in the middle of straight sections and there are C-shaped “expansion loops” that allow the inner pipe to expand or contract relative to the outer pipe.
The outer pipe has a vacuum applied by a vacuum pump, and a greater than nominal vacuum leak indicates an issue.
Of course, it’s expensive compared to a single pipe.
It's not like this space has to be particularly small. Double walled pipes are relatively common in many forms. Long-distance heating uses double walled stainless steel piping with insulation between the walls. HV systems sometimes use double walled conduits to have a second layer for the insulating gas (e.g. SF6) in case the inner layer leaks. Double walled pipes are used for lines containing especially hazardous materials.
The inter-wall space is often monitored for ingress of "stuff", triggering a controlled shutdown if it is flooded.
> In burried sections this may be a non-issue but wrapping all the valves and above-ground facilities in layers would make inspection problematic.
This is about risk mitigation, so total mitigation is not required. Protecting, say, 80-90 % of a pipeline would reduce spill risk a lot. Also, the facilities you mention may be suitable to other forms of mitigation (e.g. walls, flood basins).
> That would be very hard to engineer.
I don't think engineering is the real problem here. Cost and incentives are.
But actually, scratch that. We're in the modern era now. Send a drone into the outer pipe, and use some sensors (perhaps also video) to detect excessive moisture, or corrosion, or whatever. So it's no longer expensive.
Most new pipelines are inspected currently with "drones", called smart pipeline inspection gauges, or smart PIGs, that use ultrasonic or magnetic flux to measure the wall thickness over the entire length of the pipe [1]. The PIGs are propelled through the pipe via the working fluid in the pipeline.
I think creating a similar device to travel in the annulus of cased pipe would be much more difficult. The centralizers used to keep the inner pipe centered in the outer pipe would pose a pretty big obstacle. Plus, there would be nothing propelling it forward, and communicating with the device through a steel pipe would be very difficult.
[1] https://primis.phmsa.dot.gov/comm/FactSheets/FSSmartPig.htm?... [2] https://kwikzip.com/ (example)
That thing we were protesting happened in the worst way, maybe you will pay attention now?
https://www.theguardian.com/environment/2019/jul/08/wave-of-...
(PS- I know you're being sarcastic. Just naming the tactic. Mostly out of anger.)
1. https://en.wikipedia.org/wiki/Exxon_Valdez_oil_spill
2. https://www.cbc.ca/news/business/keystone-spils-over-1-milli...
https://en.m.wikipedia.org/wiki/Ogallala_Aquifer
This is why people protested so hard. Not some vague Luddite treehugger ideal. Not even global warming although that was a distant second.
But because this was a really fucking stupid place to have an oil spill. Let alone two. And of course there will be more.
And the area seems to be part of the Hudson Bay watershed: https://www.environment.fhwa.dot.gov/Pubs_resources_tools/re... So it doesn't seem that even the runoff would threaten any American aquifers.
The title states North Dakota, where this Aquifer is not. lettergram is most likely correct.
https://en.m.wikipedia.org/wiki/Keystone_Pipeline
Where does the existing pipeline go? Where does the proposed one go?
Or: change the system that builds these pipelines so the incentives of the entity/entities building and maintaining it have "safety of environment" as a clear and unambiguous incentive.
That's non-trivial to do in practice.
It's already incentivized, via inspections and fines. What you're presumably talking about is prioritizing it above other incentives.
Which gets into how much risk is acceptable and how much risk mitigation is reasonable to pay for. Hint: never enough that risk approaches zero.
I absolutely think fines (and especially inspections, or likelihood of catching violations) should be increased, but the world economy is still transitioning off oil.
It's easy to forget that we can absolutely put such a premium on risk that energy prices spike, that suppresses downstream consumers and economic activity, that causes worse outcomes.
IMHO, accelerating the shift to clean renewables, while simultaneously continuing to raise fines and regulation on oil pipelines as the actual energy mix shifts is the optimal choice.
$1M fine for every gallon spilled. Any attempts to falsify data will lead to imprisonment and 5x fines per gallon. Boom, properly incentivized.
I'm not seeing a downside.
This kind of undermines the validity of your point, as it carries an assumption of wanting to churn through as many natural resources as possible.
If you care about environmental sustainability, every time you hear "reduced economic activity" you should think "sounds great!". We've figured out how to produce so much stuff that our homes are full and we throw things away every several years to get new ones.
Economic priests want to keep the machine running full tilt under a misguided idea that sustainability can somehow be priced in. But compare the general time to fix (or simply maintain!) something at your general hourly rate to the cost of buying a shiny new one. Thinking that this harsh dynamic can be abstracted and then recouped somewhere else is simply more unsustainable bubble thinking.
There are serious, life-threatening concerns about reorienting the world to a lower-growth, lower-carbon model.
And to substitute fervor for fact is just as much of a fallacy as the global free trade crowd committed, before recently admitting that maybe they should have thought harder about the dislocating side effects and funding strategic workforce reskilling programs.
We don't get to a brighter future by ignoring the hard questions and consequences of proposed paths.
"Economic activity" directly translates into "use natural resources". The overwhelming fallacy seems to be this idea that sustainability will somehow eventually, not today, but some day soon, be priced into the economy such that we can have large sums sloshing back and forth but the externalities will be fully captured. This seems like an economically convenient myth, analogous to the free trade crowd's handwaving about comparative advantage.
Sorry I did not see how to succinctly express the overall arc of what I said with less "fervor". If two people are having a casual conversation about say baseball, but you think it is harmful and destructive, it's impossible to express without sounding like a looney. (I used baseball because I think it's innocuous. Whereas any real example would inherently be polarizing).
I'd be pleased as punch if we moved to a post-resource economy, but I also think it's going to be the hardest thing we've ever attempted (in an international sense).
The Paris climate agreements are a minor skirmish on the scale of what needs to be done.
Because, ultimately, we're talking about some wealthy countries having less (compared to business as usual) in order to strike agreement with poorer countries not to run their growth at full tilt.
So when we say things like "stricter environmental regulations," we're really saying "stricter environmental regulations worldwide." Otherwise we're just offloading pollution to the current poorest country with a labor force.
And it's going to take some serious financial and developmental persuasion (and ugly enforcement) to get someone to not do something that would make them better off.
... It is heartening to see the debate being reframed in justice terms. Because that seems to have a better chance of winning hearts and minds to the extent necessary.
Well, the inspections aren't happening - since major leaks are happening. And the fines are very small, otherwise a bunch of these companies would have gone under.
More importantly - no criminal charges against the management of these companies and the engineers who signed off on the thing.
They are already unwillling investors in the pipeline. They invest with the cost of their health and safety at a cut-rate of $0 to the operator of these critical systems.
"I got mine!" is a terrible foundation on which to build a society.
The problem is the people who write the rules benefit from political support of the very companies that need to be regulated.
Or just use EVs.
If you insist on transporting oil, do the same as countries did with oil tankers: force them to have an insurance policy that would cover all the environmental damage costs. Very quickly, insurers forced the shipping companies to reinforce their safeties.
https://www.travelers.com/business-insurance/oil-gas/midstre...
At the moment, some governments charge a bond that barely covers the clean up costs.
As someone said, the costs are externalized and companies will go bankrupt if they are forced to clean it all up.
If those aren't us to snuff (I suspect) we should probably remediate the deferred maintenance and implement all planned upgrades.
I have never compared the safety records, so my assumption was pretty baseless in retrospect.
All I'm saying is, the day a Tesla et. al become significantly more affordable than a Honda Civic, with the ability for seamless cross country travel, is the day one can accurately claim no dependency on oil
There are so many pipelines and well heads and so forth, scattered every where, which are poorly maintained, literally bursting at the seems, and at eminent risk of catastrophic failure.
The ones running under the Great Lakes comes to mind. The day when (not if) one of those fails is going to be really, really bad.
- massive expansions of renewables (doable since costs have dropped precipitously)
- possibly temporary use of fission (replaced hopefully by fusion)
- elimination of diesel-powered ships, replaced by electrical (battery) and/or nuclear fission (again hopefully replaced by fusion)
- elimination of FF-powered air transport with electric-powered
- derivation of reasonable amounts of polymers from recycled materials and plant sources
- improved, efficient post-consumer recycling diverting a considerable fraction of the waste stream back into raw materials
Furthermore, it is necessary and possible to spend on the order of what was spent on the wars in Afganistan and Iraq on CCS to return GHGs to pre-industrial levels... if we don't do this, nothing else matters because we (and our progeny) will all be dead. We ought to examine:
- ferrous ocean seeding of phytoplankton blooms
- blooming the kelp over-proliferation between Mexico and Africa for harvest and subterranean/hadopelagic CCS
And to be consistent, the top two other major sources of GHGs should be minimized:
- meat agriculture
- clinker production (Portland cement / concrete)
So the math here is simple: to achieve net-zero carbon dioxide emissions by 2050, the world would need to deploy 3 [brand new] nuclear plants worth of carbon-free energy every two days, starting tomorrow and continuing to 2050. At the same time, a nuclear plant’s worth of fossil fuels would need to be decommissioned every day, starting tomorrow and continuing to 2050.
I’ve found that some people don’t like the use of a nuclear power plant as a measuring stick. So we can substitute wind energy as a measuring stick. Net-zero carbon dioxide by 2050 would require the deployment of ~1500 wind turbines (2.5 MW) over ~300 square miles, every day starting tomorrow and continuing to 2050.
Just consider the steel (coking coal) and cement needed to accomplish this.
source: https://www.forbes.com/sites/rogerpielke/2019/09/30/net-zero...
Its a simple method and easy to validate on your own.
It has to be a combination and there will have to be painful adjustments to the current western lifestyle.
We need to find better ways of moving around, buy less stuff and produce food in better ways.
I feel quite confident in saying “that will never happen.”
If you want to avoid a mass revolution from the people, you can’t take away quality of life.
Furthermore the fact that we aren't building 10 test fusion reactors all around the planet shows how less people are aware of the problem, and how little effort and resources are we willing to allocate toward really averting it.
1. No energy savings.
2. No carbon sequestration.
Now, I'm no expert on either of these, but both are of extreme importance to achieving emission reduction goals, and there is huge potential for such reductions.
https://medium.com/otherlab-news/decarbonization-and-gnd-b8d...
“The mere act of electrification has a powerful effect on efficiency: electrifying the US economy from carbon free sources will reduce the amount of energy needed by more than half.”
If we're to make progress on climate change, more practical solutions than those a grade schooler can trivially dream of, need to be discussed.
If we could cold turkey cut off single use plastic and IC engines without disrupting the economy and civilisation, we already would
As for single use plastics, you're going to have to narrow that down. What about medical plastics? Food service gloves? Hazmat suits?
In a century I could imagine a 50-80% decrease in usage in the US, but by that time Africa and Asia will have doubled in population. Any efficiency gains are totally lost with an increase in population. Every added person will guarantee a life of consumption which requires the use of oil, especially in a nation which isn't anywhere close enough to replacing their infrastructure with "green" technologies.
I’m sure that single mother working two jobs would love to have her grocery bill go up by 50% so that we can accelerate the adoption of green energy.
I remember many complaints that the pipeline was shoddily built and was using sub-standard materials.
https://www.forbes.com/sites/jamesconca/2013/08/25/what-is-w...
Someone cutting a hole in the pipe to steal oil? Structural supports of the pipe failing and the pipe cracking?
There are very reliable testing methods that require shutting down the pipeline, and I understand there are some technologies available too, but both are 'too expensive'.
The position of petroleum producers is that the existing regulations are already too strict and burdensome to justify the capital cost and risk of building new pipelines. They aren't doing themselves any favors and may need to get used to lower margin business.
To me, the growing demand for petrol, the age of the existing pipelines, the relaxed regulation, low popularity of new pipelines, and the relatively low margins in the current market are a recipe for disaster. Populism is only making it worse (drill baby drill vs shut down all the pipelines), such stupidity makes my head hurt.
Leaks used to be reported in barrels, but the numbers aren't nearly as dramatic. I assume the media learned that headlines with 'millions of litres' get far more clicks.
The only other viable oil transfer over land is rail or trucking, both of which cost much more, pollute more, and have even higher risks of spills and accidents.
Also many pipelines do carry refined products, like all the jet fuel that goes to airports and diesel fuel for trucking.
Why they are in prison?
None actually are. The same pipeline that the Native Americans protested, some of which are still in prison.
Different pipeline.In a different state altogether, for that matter.
And not one Native American XL protestor is in prison.
Other than all that, your comment is totally cogent.
All hail he magnanimous and great corporation.
The alternative is this: https://en.wikipedia.org/wiki/Lac-M%C3%A9gantic_rail_disaste... which was 7M L and dozens of deaths.
From your link:
> Even before the Lac-Mégantic accident, attempts were made to require redesign or replacement of existing cars in the U.S.; these were delayed amidst fierce lobbying from rail and petroleum industry groups concerned about the cost.
I don't see why we should be forced to accept this risk when the companies that profit off this risk won't pay to do it responsibly?
As a cyclist, I don't see why I should be forced to accept the risk of cars when the companies that profit off this risk won't pay for separate bike lanes.
Everything in life has risk/reward. What is the alternative that is a more palatable risk/reward?
When they bear less of the risks to pedestrians, cyclists and the environment, they don't do anything to minimize those risks and even do things to accentuate those risks when doing so will increase their profits.
I'm not sure why this appears to be interesting for HN. Are there obvious problems/possible improvements with the way pipelines are currently built, or does it cater to general anti-oil sentiments (= political)?