[HN Gopher] Study: Carbon offsets aren't doing their job, overst...
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       Study: Carbon offsets aren't doing their job, overstate impact
        
       Author : donutshop
       Score  : 97 points
       Date   : 2023-08-27 17:26 UTC (5 hours ago)
        
 (HTM) web link (arstechnica.com)
 (TXT) w3m dump (arstechnica.com)
        
       | yawboakye wrote:
       | both carbon offset and the business surrounding it (especially
       | carbon sequestration) are mostly for the purpose of virtue
       | signaling. it's no different from the sunday confessions held
       | mostly in catholic cathedrals, where one can sin all they want
       | during the week and have it all forgiven in a couple minutes talk
       | with a priest. if you can keep current operations as is, reap
       | massive profits, and pay pennies towards carbon removal, which
       | dumb business executive will refuse?
        
       | paulcole wrote:
       | Carbon offsets never made sense from the start. Obviously just a
       | way to continue polluting, maintain a clean image, and line
       | somebody's pockets.
        
       | ihsw wrote:
       | [dead]
        
       | Explore3003 wrote:
       | The money going towards carbon offsets would be better spent on
       | lobbying in favor of carbon taxes, and establishing Enhanced
       | Weathering: https://en.wikipedia.org/wiki/Enhanced_weathering
        
         | A_D_E_P_T wrote:
         | > lobbying in favor of carbon taxes
         | 
         | This is deeply unpopular with the electorate, and for very good
         | reason.
         | 
         | When the only "solution" to "fighting" global warming is to
         | levy more taxes on the middle class, increase food and
         | construction costs, and cripple developing nations' ability to
         | build industry -- when elites fly around the world on private
         | jets (that spew more CO2 in 6 hours than I will create in 10
         | years), and "researchers" rake in grant money based on
         | promoting apocalyptic levels of fear -- well... put it like
         | this: If you want right-wing populist governments, that's how
         | you're going to get them.
        
           | Gibbon1 wrote:
           | My more colorful language is beating poor people and the
           | middle class with a rubber hose and hope that solves the
           | problem while ignoring the large frictions present in those
           | people lives.
           | 
           | You want poor people to switch to an electric car? Do what
           | California is doing with car buybacks and grants for new and
           | used EV's. A low income person in some counties can get a
           | couple of grand to trade in his old gas car for a used EV's
           | like a Bolt. That's better because instead of feeling
           | attacked people feel like they got a decent deal.
        
             | shipman05 wrote:
             | Electric cars are an optimization something we shouldn't be
             | doing in the first place.
             | 
             | E-bikes and trains can save the world.
        
           | labster wrote:
           | And yet that's still better than carbon credits
        
           | wmf wrote:
           | The populists may enjoy sticking it to the rich with a carbon
           | tax and dividend.
        
           | finite_depth wrote:
           | [dead]
        
           | AnthonyMouse wrote:
           | The right way to do a carbon tax is to refund 100% of the
           | money to the population. Everyone gets a check every month
           | for the entire amount collected, divided by the number of
           | citizens. This way it costs you nothing unless you emit more
           | carbon than the average person, and you can even come out
           | ahead if you emit less. On top of that, it ends up being a
           | net transfer from corporations to individuals, because
           | corporations still pay the tax but only individuals get the
           | checks.
           | 
           | It would also be a very informative trial run for a UBI
           | (though in this case the amount would be smaller).
           | 
           | The "problem" with this is strictly politics: a) It would
           | actually work, so the fossil fuel energy companies _hate it_
           | ; b) There is no opportunity for graft because the money is
           | distributed to everyone and not just the politically
           | connected, so there is no special interest lobby trying to
           | make it happen.
        
             | papercrane wrote:
             | This is essentially the Canadian model. The federal
             | government mandates that every province must put a minimum
             | price on carbon. If they don't the federal program puts a
             | direct price on carbon and rebates the residents of the
             | province directly. About 90% of the money goes directly to
             | residents and the other 10% is directed by the federal
             | government to programs within the affected province, for
             | example in Ontario they used the money for energy retrofits
             | of public schools.
             | 
             | https://www.canada.ca/en/environment-climate-
             | change/services...
        
               | AnthonyMouse wrote:
               | All the money goes to the refund or every part that
               | doesn't is a regressive tax and an opportunity for
               | corruption.
               | 
               | It's also not clear what local deference is buying you
               | here, because this is one of the _very_ few cases of a
               | national issue where the right solution is clear and
               | simple and makes sense to implement uniformly at the
               | national level.
               | 
               | The only sense of doing it at a local level is if the
               | national government fails to act.
        
               | papercrane wrote:
               | The deference to local levels here is simply pragmatic.
               | Constitutionally the environment is a provincial
               | government responsibility. The Federal backstop is only
               | legal because of the "peace, order, and good government"
               | clause of our constitution.
        
               | AnthonyMouse wrote:
               | That actually makes sense in a way. If the local
               | government is addressing an issue the national government
               | shouldn't need to touch it. In the US it's basically the
               | opposite (once the federal government gets involved with
               | something the states can't override it), and it's
               | basically terrible because there were originally meant to
               | be limits on what the federal government can get involved
               | in but they've been expanded beyond all reason.
               | 
               | And local control can still "work" even when the same
               | solution should apply everywhere because they can each
               | individually adopt the same solution, the same as
               | different countries can. In theory a province could even
               | counteract the effect of the federal government trying to
               | get them to spend 10% of the money by just distributing
               | it to the population as it should have been, though of
               | course politicians rarely have that much willpower.
        
             | hunter-gatherer wrote:
             | Why wouldn't people just use their UBI on buying more
             | things, which, as rudimentary understanding of physics
             | goes, yields more demand for production, which increases
             | C02 output?
             | 
             | Perhaps I'm missing something, but I don't understand how
             | taxing and redistributing the money does anything besides
             | shifts the consumer power a bit???
             | 
             | I mean, wouldn't a better solution just be to have a carbox
             | tax and then destroy the taxed money?
        
               | AnthonyMouse wrote:
               | You're neither creating nor destroying any new money.
               | 
               | Bob is average. Bob pays $100 in carbon tax and then gets
               | a check for $100. He doesn't have any more or less money
               | to spend than he did before. He is able to continue his
               | existing behavior and make no change whatsoever, if he
               | wants.
               | 
               | But now he has the _incentive_ to make a change. Because
               | if he installs electric heat pumps instead of heating his
               | house with oil, now he is only paying $50 in carbon tax
               | but still gets a check for $100. If he can get the heat
               | pumps installed for a monthly payment of less than $50,
               | that 's what he's going to do. And that's the goal.
        
             | 9dev wrote:
             | This is a very interesting idea. Actually, it's also the
             | only solution I can think of that would incentivise people
             | to emit less carbon, using selfishness as a lever to
             | achieve cooperation - similar to capitalism itself.
        
             | nine_k wrote:
             | This sounds cool.
             | 
             | What would be the cost of administering this tax?
        
               | AnthonyMouse wrote:
               | We already collect federal excise tax on fuel. Changing
               | the amount has a trivial cost. We already collect
               | withholding tax from individuals. Changing the amount has
               | a trivial cost (your boss adds money to your paycheck
               | every week instead of removing it if your tax rate is now
               | negative, retirees and people on disability/unemployment
               | have the amount added to their existing social
               | security/benefits check).
               | 
               | There would be a minor one-time cost for the small
               | minority people none of that applies to, to fill out a
               | form specifying where you want the money to be deposited
               | or the check mailed. But the fundamental process of
               | distributing the money would be a transfer of a fixed
               | amount to each citizen with a social security number,
               | which is easily computerized.
        
               | sokoloff wrote:
               | This misses embodied carbon in imports and much of the
               | emissions from domestic agricultural and industrial
               | processes, which are surely large enough to not be
               | ignorable.
               | 
               | If you want to only tax fuels, that's a start.
        
               | AnthonyMouse wrote:
               | Obviously the administrative cost of taxing some other
               | emissions source is going to depend on the nature of that
               | emissions source, but if hypothetically evaluating
               | emissions from certain sources turned out to be
               | prohibitively burdensome, that would not be any excuse to
               | avoid doing it for fuels at a minimum, which constitute
               | the majority of emissions anyway.
               | 
               | And a more efficient way to handle imports would be to
               | impose general tariffs on imports from countries that
               | don't _themselves_ impose a carbon tax, rather than
               | trying to calculate the effects of something happening in
               | a foreign country. Which would have a more significant
               | effect anyway, because causing the entire country to
               | reduce its own emissions would be a much bigger win than
               | causing only their exports to do so.
        
               | wmf wrote:
               | The cost would probably be similar to the COVID stimulus.
               | Maybe they can require the dividend to be distributed
               | using FedNow to drive down the cost somewhat.
        
             | mym1990 wrote:
             | You really believe that a within a complex restructuring
             | like this, there would not be _any opportunity for graft_?
             | Would love to step into whatever fairy tale you 're in.
        
               | AnthonyMouse wrote:
               | If 100% of the money is evenly distributed to every
               | citizen, there is not a cent left to fund any corruption.
               | Ideally the minimal administrative costs should not even
               | come out of the carbon tax, of which _fully one hundred
               | percent_ should be _evenly distributed to every citizen_.
               | 
               | Presumably there would be some wrangling about how to
               | measure CO2 emissions in certain harder to objectively
               | measure contexts, but they're still not getting any of
               | the money, they might just sneak in a way to not pay
               | their full share. And we know with low variance how much
               | CO2 is emitted by a unit of motor fuel or natural gas or
               | coal, which represent the bulk of emissions.
        
           | [deleted]
        
           | cagenut wrote:
           | nobodies raking in grant money, and if you're in ethiopia or
           | south sudan or niger then the apocalypse is already here: htt
           | ps://www.ipcc.ch/report/ar6/wg2/downloads/figures/IPCC_AR...
        
           | postmodest wrote:
           | > "researchers" rake in grant money based on promoting
           | apocalyptic levels of fear
           | 
           | This is a bad take. We are currently living in apocalyptic
           | levels of REALITY.
           | 
           | The people saying what you just said, but twenty, thirty,
           | fifty years ago, were speaking out against the warnings that
           | --if we'd acted in them instead of attacking the messenger as
           | you did-- could've kept us from global wildfire and heat
           | domes.
        
             | veavo wrote:
             | [flagged]
        
             | quixoticelixer- wrote:
             | The world isn't actually going to end.
        
               | gattilorenz wrote:
               | No, but I'd prefer not to have to deal with more and more
               | extreme weather events, increased sea levels, etc. The
               | planet will survive, we as a species probably too, but
               | it's going to get shittier for many of us.
        
               | ClumsyPilot wrote:
               | > The world isn't actually going to end.
               | 
               | The world didn't end after the Black death and it did not
               | end after WW2. And it will not end after a nuclear war.
               | 
               | So we should never do anything because the world is never
               | going to end.
        
               | panarchy wrote:
               | No, but our quality of life sure will (and already has
               | for some people)
        
         | WicWacWok wrote:
         | I mean better late than never, but somehow I don't see this
         | reducing carbon emissions so much as slowing them.
        
         | Nifty3929 wrote:
         | I would be happy to support a carbon tax, as long as the
         | proceeds are held off-books and distributed annually to all
         | citizens equally, with no income or other qualification
         | criteria. Basically a carbon funded pure UBI.
        
           | twoodfin wrote:
           | What this kind of proposal needs is a name the progressive
           | and moderate left can rally around. Something akin to "living
           | wage".
           | 
           | Mandating a "living wage" makes some things noticeably more
           | expensive: Burgers, rideshares, lawn care, ...
           | 
           | A serious, effective carbon tax will make gas more expensive.
           | Maybe 50 cents/gallon.
           | 
           | If the voting public felt the same way about gas prices as
           | they do about the minimum wage--if you can't afford it your
           | financial model is immoral--an effective carbon tax would be
           | a political slam dunk.
        
           | ecshafer wrote:
           | So the guy working in a kitchen that makes $20k a year and
           | bikes to work should be taxed the same as the ceo with a
           | private jet when it comes to carbon production?
        
             | jfim wrote:
             | A carbon tax just puts a price on carbon emissions. So if
             | the guy bikes to work and doesn't buy gas, he's not paying
             | taxes on carbon emissions, while the CEO in a private jet
             | pays more. If the carbon tax proceeds are redistributed,
             | the guy in the kitchen comes ahead, actually.
        
               | transcriptase wrote:
               | Everything in the modern world has the oil/energy needed
               | to create it baked into the price.
               | 
               | Implementing a carbon tax that increases that cost along
               | every step of a supply chain increases the price of
               | everything, not just gasoline.
               | 
               | See: Price of groceries (and all other CPG) in Canada.
               | People will blame the retailers and lazy headlines about
               | record profits, but if you look at their actual margins,
               | the value of CAD, and the fact that the government is
               | increasing the population faster than anything else can
               | catch up... it's not surprising that they're posting
               | record numbers. People need to eat. The oligopoly issue
               | definitely plays a part but that's another can of worms.
        
               | ClumsyPilot wrote:
               | > Everything in the modern world has the oil/energy
               | needed to create it baked into the price.
               | 
               | Ye, and CEO consumes more of everything, so anyone lower
               | income will receive more from re-distrubtion than they
               | wil pay in tax.
        
             | Nifty3929 wrote:
             | Yes. The alternative is having politicians and beaurocrats
             | fighting about all the little details of who gets what.
             | 
             | It's not about being fair, it's about keeping the
             | politicians out of it as much as possible. It costs very
             | little money to let the 1% get theirs, because by
             | definition there just aren't very many of them. Thats a
             | tiny price to pay for the major advantage of less political
             | football.
        
           | ip26 wrote:
           | One of the big problems seems to be simply getting supporters
           | to _agree_ on what to do with the money. There are plenty of
           | supporters who staunchly insist the money _must_ be used
           | exclusively for miscellaneous social justice causes.
        
       | gustavus wrote:
       | "Okay," I say. "Carbon credits are a bit like beating someone up
       | on this side of the world and sponsoring one of those poor
       | starving kids on the other side of the world to make up for the
       | fact that you're a complete shit at home."
       | 
       | ....
       | 
       | "OK," the PFY says as we leave the building via the service
       | entrance. "All we have to do to be nastiness neutral is to find a
       | couple of people bound and gagged in a skip bin, take them out,
       | give them a couple of wallets, unkick them a few times,
       | unelectrocute them with a cattle prod and say 'clothing hippy on
       | discount percent seventy look oh'."
       | 
       | "On the other side of the world," I add.
       | 
       | - The BOFH
       | 
       | https://www.theregister.com/2008/02/01/bofh_episode_4/
        
       | realusername wrote:
       | The thing which doesn't make sense with those is that it's always
       | projects in developing and poor countries ... whereas the
       | overwhelming majority of emissions is actually in developed
       | countries.
       | 
       | If you would conceive a scheme to reduce emissions, there's no
       | way that it's going to be in any other place than the top
       | emitting countries, where the emission is in the first place.
       | 
       | Those projects are kind of shifting blame onto people and places
       | which aren't causing the issue.
        
         | voisin wrote:
         | > the overwhelming majority of emissions is actually in
         | developed countries.
         | 
         | This is true, but the low hanging fruit (in terms of cost) in
         | terms of drawdown might be developing countries, where things
         | like birth control, paying farmer not to cut down rainforest,
         | etc can be done inexpensively.
        
           | realusername wrote:
           | There's also a lot of low hanging fruits in developped
           | countries, better farming techniques, electric cars, heat
           | insulation, financing renewables depending of the electric
           | mix, making food products with less emissions cheaper for
           | consumers to shift consumption...
           | 
           | It's true that the state has the upper hand but there's also
           | things that an NGO or a private company could do.
        
             | sofixa wrote:
             | > There's also a lot of low hanging fruits in developped
             | countries, better farming techniques, electric cars, heat
             | insulation, financing renewables depending of the electric
             | mix, making food products with less emissions cheaper for
             | consumers to shift consumption...
             | 
             | That's moderately hanging fruit, and all of it is being
             | done in most EU countries and to a significant degree in
             | the US.
        
       | Biologist123 wrote:
       | I once worked in the sector, and left once I realised that the
       | scam is that sellers of offsets characterise a complex system as
       | a simple system.
        
       | cumshitpiss wrote:
       | [dead]
        
       | asu_thomas wrote:
       | This should be news to exactly nobody.
        
       | LapsangGuzzler wrote:
       | > From project implementation until 2020, those 18 projects were
       | expected to generate up to 89 million carbon offsets to be sold
       | in the global carbon market. But researchers estimate that only
       | 5.4 million of the 89 million, or 6.1 percent, would be
       | associated with actual carbon emission reductions.
       | 
       | It sounds like a massively fraudulent market with little actual
       | oversight.
        
         | ethbr1 wrote:
         | Curious about someone in the industry's opinion, but the
         | problem sounds like carbon offsets should actually be treated
         | as carbon offset _futures_.
         | 
         | I.e. the value is determined at the time of _delivered_ carbon
         | offsets, and the instrument 's price floats on the market
         | before that time, including relative to how likely / valuable
         | the delivery is
         | 
         | If company A buys a carbon offset from entity X, and it becomes
         | increasingly apparent that entity X isn't going to be able to
         | deliver the face value in terms of carbon, the instrument
         | bought by company A should decrease in value.
         | 
         | Consequently, next time around, company A would not purchase
         | from entity X.
         | 
         | Which is exactly what you'd want to happen!
         | 
         | Corollary: Verification by third party should be required, with
         | less measurable schemes less valued.
         | 
         | Multiple satellites confirming forests intact? Proof. Direct
         | air capture or weathering? Proof.
         | 
         | Some nebulous walk through how this might have influenced this
         | other thing? Eh...
        
           | wmf wrote:
           | That doesn't really match the way people are using offsets.
           | If you buy offsets for a flight and ten years later you learn
           | that that they were ineffective... what? The least effective
           | offsets having the lowest price isn't a good incentive
           | either.
        
             | ethbr1 wrote:
             | I don't believe the majority of VCM offsets are being
             | purchased by end users. Are they? I thought they're
             | typically purchased by corporate entities to support "net
             | zero carbon by X year" pledges.
             | 
             | Apparently this stuff has matured a lot in the last 10
             | years, and I haven't been keeping pace with it.
             | 
             | There's already a concept of "vintage" (i.e. year carbon
             | reduction realized in), but I still don't think they're
             | being traded in a floating price futures model.
             | 
             | It sounds like the international community is leaning on
             | certification-first, then sale of only certified offsets.
             | 
             | https://en.m.wikipedia.org/wiki/Carbon_offsets_and_credits#
             | O...
             | 
             | ... which, doesn't feel like it fully harnesses the power
             | of market investment in new technologies.
             | 
             | If a corporate buyer finds a new technology that has
             | promise, they should be able to plow money into it! (At a
             | cheaper per-offset-CO2-ton price than alternatives)
             | 
             | If that new tech delivers, the company just saved money.
             | (For the same amount of CO2 offset purchase)
             | 
             | If the new tech fails to deliver, the offset buying company
             | should be forced to realize financial losses.
             | 
             | Ergo, companies will be incentivized to invest in the most
             | effective tools for future CO2 offsetting.
        
           | AnthonyMouse wrote:
           | The problem with carbon offsets is worse than that.
           | 
           | First, there is no real way to tell if someone was going to
           | do something anyway. You have an existing operation which is
           | already cost effective to modernize because the fuel savings
           | exceed the cost, so you were going to do it anyway, but now
           | you get to sell credits even though the modernization would
           | have happened regardless. So you have a significant amount of
           | preexisting supply without motivating any real emissions
           | reduction.
           | 
           | Second, not everyone is required to buy them, so the demand
           | side is artificially low.
           | 
           | The result is that credits are available for less than
           | $2/ton, or to put it another way, less than $0.02 per gallon
           | of gasoline. This is obviously not going to provide any
           | meaningful incentive to reduce emissions.
        
             | quixoticelixer- wrote:
             | > First, there is no real way to tell if someone was going
             | to do something anyway.
             | 
             | There sort of is though, and both carbon off-setters and
             | this study claim that they can
             | 
             | Also there is plenty of demand in this market, even dodgy
             | credits are worth much more than $2
        
               | AnthonyMouse wrote:
               | > There sort of is though, and both carbon off-setters
               | and this study claim that they can
               | 
               | What they're talking about is determining if you've paid
               | someone to not burn down a forest and then they do it
               | _even after taking the money_. Which you could
               | conceivably verify.
               | 
               | The problem is when someone already intends not to burn
               | down a forest, or do whichever other thing counts for
               | credits. Then they can sell credits in exchange for
               | proceeding with their existing intentions. Everyone
               | already intending to do any of those things can profit
               | from selling the credits, so they do and the market
               | contains tons of credits that are not actually making any
               | difference.
               | 
               | > Also there is plenty of demand in this market, even
               | dodgy credits are worth much more than $2
               | 
               | https://carboncredits.com/carbon-prices-today/
               | 
               | Offset are worth less than $2. "Credits" in the EU are
               | worth significantly more, because they use "cap and
               | trade", which results in significant carbon pricing but
               | is manifestly unjust because it directly rewards
               | companies for having been the largest polluters.
        
       | emodendroket wrote:
       | Or perhaps they're doing exactly their job but their job is not
       | actually what it purports to be. It seems a bit like a modern-day
       | version of indulgences.
        
       | aSithLord wrote:
       | Good luck trying to offset Popocatepetl...
        
       | labster wrote:
       | Carbon credits are the only financial instrument that is scammier
       | than crypto.
        
         | smilespray wrote:
         | What about _crypto carbon credits?_
         | 
         | https://carboncredits.com/the-top-5-carbon-crypto-companies-...
        
           | paulddraper wrote:
           | Match made in heaven
           | 
           | Or somewhere
        
           | jjoonathan wrote:
           | _Of course_ there are so many of these that people made
           | "top-N" lists.
        
       | rohan_ wrote:
       | doesn't this just mean they're priced incorrectly?
       | 
       | like can't you have different ratings for different carbon credit
       | products - the more accurate ones are priced higher?
        
         | burkaman wrote:
         | Not really, because most carbon credits are based on
         | counterfactuals - would this forest have been logged if you
         | didn't protect it, would this farmer have used less efficient
         | practices if you hadn't paid them, would this land have
         | remained empty if you hadn't paid to plant trees, etc. No
         | matter how reputable the rating agency is, they still won't be
         | able to answer these questions very accurately.
         | 
         | Additionally, when you purchase a credit you're generally
         | purchasing a prediction of how much carbon might be absorbed in
         | the future. For a afforestation credit, you're often purchasing
         | the amount of carbon that forest will absorb over 100 years. No
         | rating agency can legitimately tell you that your forest isn't
         | going to burn down or be logged in the next century. It's a
         | pretty ridiculous idea - the seller, purchaser, and rating
         | agency will all probably not exist after 100 years, and the
         | government of whatever country the forest is in will probably
         | have been overthrown.
         | 
         | I think contributing money to protect and rewild nature in the
         | interest of increasing carbon sequestration is a great idea
         | that should continue, but nobody should be receiving offsets
         | that they weigh 1-to-1 against their actual real-world
         | emissions. It just isn't a meaningful comparison. Even if your
         | purchase actually makes an impact, it's like dumping toxic
         | chemicals into a river and setting aside money to fund an
         | organization that will gradually clean up the river over the
         | next century, and then claiming that you've now achieved net-
         | zero pollution.
        
       | RcouF1uZ4gsC wrote:
       | I would argue carbon offsets are exactly doing their job:
       | allowing people and corporations to throw a bit of money at the
       | problem and continue with business as usual.
       | 
       | They are the equivalent of medieval indulgences.
        
       | tejohnso wrote:
       | Cynical take:
       | 
       | The job of the carbon offset is one or more of the following:
       | - Assuage guilt            - Virtue signal (personal, political,
       | or corporate)            - Profit financially from government
       | incompetence            - Profit financially from corporate PR
       | efforts
        
         | tito wrote:
         | We absolutely need a working market to meet decarbonization
         | goals for a stable climate. The state of the current market
         | means there's a lot of opportunity for improvement.
        
       | mrshadowgoose wrote:
       | The issue is that carbon offsets are poorly defined/regulated and
       | are therefore almost never "honest". The definition of "honest"
       | here, is that a purchased offset should represent a unit of
       | carbon that has already been removed from the atmosphere.
       | 
       | Instead, we have "offsets" that claim to remove carbon at some
       | arbitrary point in the future, or worse, are an "expected
       | reduction of carbon output of some nebulous projects in the
       | future", which is how a lot of offsets actually operate. Even if
       | valid, and one's purchased unit of offset carbon is actually
       | mitigated at some point in the future, this doesn't negate the
       | impact of the carbon that was emitted today until that point in
       | the future that it's mitigated.
       | 
       | Today's cost of atmospheric carbon capture is several hundred
       | dollars / ton. If you find yourself "offsetting" for a few
       | dollars / ton, you're just fooling yourself.
        
         | quixoticelixer- wrote:
         | > Today's cost of atmospheric carbon capture is several hundred
         | dollars / ton.
         | 
         | For stuff like direct air capture, not for afforestation.
        
           | mrshadowgoose wrote:
           | Same issue of "honesty" with afforestation-based credits. A
           | ton of carbon removed during the growth of a new tree is not
           | equivalent to a ton of carbon already removed today.
           | 
           | However, as these types of projects actually do remove
           | carbon, one could probably compute an adjustment factor and
           | purchase additional credits to achieve an "honest" offset.
        
             | emodendroket wrote:
             | That's assuming the afforestation is even helpful and not
             | one of the various examples of incentives for planting
             | trees leading to work that's actually doing more harm than
             | good.
        
               | mrshadowgoose wrote:
               | Out of all the nebulous carbon offset schemes that exist
               | today, afforestation seems to be one of the least scammy
               | options if ones adjusts for the fact that "future value"
               | != "present value". Even the uncertainty of the long-term
               | success of afforestation projects can be statistically
               | modelled and incorporated into an adjustment factor.
               | However, nobody is going to willingly do that, so even
               | those types of offsets will remain dishonest.
               | 
               | Absent regulation, carbon offsets are a race to the
               | bottom in producing the cheapest "offset" just hovering
               | above the threshold of "fraudulent".
               | 
               | Direct air capture with long-term sequestration,
               | performed prior to the sale of a carbon credit, is the
               | only scheme that is remotely close to being fully honest.
        
               | InexSquirrel wrote:
               | That's an interesting comment. I hadn't really ever
               | considered that afforestation might be a bad thing -
               | always just assumed "more trees = good". In what sort of
               | examples would it be a bad thing? Trying to create
               | forests in places that naturally weren't forests in the
               | past?
        
         | finite_depth wrote:
         | [dead]
        
       | ngcazz wrote:
       | Great moment to plug Climate Town's video from a couple years
       | back on precisely this https://youtu.be/EIezuL_doYw
        
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