abdullahkhalids
a day ago
The last IPCC report estimates that to limit warming to 2C, humans can only emit at most 1150 GtCO2 (at 67% likelihood) [1].
There are 8.2 billion humans, so about 140tCO2/person left on average. If we assume that we get to net zero by 2050, that means the average person can emit about 5.4tCO2/person/year from today to 2050 (hitting 0tCO2/person/year in 2050). This is what emissions look like currently [2]
Top 5 countries > 10m population
Saudi Arabia 22.1t
United Arab Emirates 21.6t
Australia 14.5t
United States 14.3t
Canada 14.0t
Some others
China 8.4t
Europe 6.7t
World average 4.7t
Lower-middle-income countries of 1.6t
Low-income countries 0.3t
Guess what's going to happen and who is going to suffer, despite not doing anything.[1] Page 82 https://www.ipcc.ch/report/ar6/syr/downloads/report/IPCC_AR6...
Aurornis
a day ago
> that means the average person can emit about 5.4tCO2/person/year from here on out. This is what emissions look like currently
Using a world average target number and then presenting a list that leads with world outliers is misleading. This is the kind of statistical sleight of hand that climate skeptics seize upon to dismiss arguments.
The world average is currently under the target number:
> World average 4.7t
I think you meant to imply that the CO2 emissions of poor countries were going to catch up to other countries, but I don’t think it’s that simple. The global rollout of solar power, battery storage, and cheap EVs is exceeding expectations, for example.
I don’t want to downplay the severity of the situation, but I don’t think this type of fatalistic doomerism is helping. In my experience with people from different walks of life, it’s this type of doomerism that turns them off of the topic entirely.
jfengel
a day ago
I believe the causation runs the other way. The IPCC was founded in 1988, when CO2 emissions were 22 gigatons per year. Nearly four decades later it's 40 gt/y, and continuing to rise.
Doomerism is the reaction to our utter failure to even pretend to try. It did not cause that failure. Nor are people looking at the data and going, "yeah, I ought to do something, but people on Hacker News were gloomy so I'm going to buy a bigger SUV instead." EVs and solar and suchlike are much, much, much too little and much, much, much too late.
Doomerism doesn't help, except in the extremely limited sense of helping someone express their frustration. But it also isn't hurting because we'd be doing exactly the same nothing if they were cheerful.
ericd
a day ago
The comically named Inflation Reduction Act included a tremendous amount of money for scaling up clean tech manufacturing in the US, and it’s been getting deployed quickly. The DOE Loan Programs Office got something like $400B in loan authority. Overall, the IRA was probably the largest single bit of climate action the US govt has ever taken. Unfortunately, people mostly hear about that work when it becomes part of political football (Solyndra and Tesla both got money from the DOE LPO to help them scale up, and the political fallout from Solyndra was the first time most people had heard of it). But it’s happening.
einpoklum
21 hours ago
> included a tremendous amount of money for scaling up clean tech manufacturing
It included a moderate amount of money as stimulus to commercial companies which manufacture clean(? clean-er?) tech.
The Biden administration has also "balanced" this by allowing for massive amounts of further drilling for fossil fuels.
And even without the "balancing" - this is not remotely like an actual plan to convert the US to near-zero-emission energy production, in the immediate future, which is what's actually necessary.
ericd
21 hours ago
$400B is moderate? Have there been other bills that have come anywhere close?
einpoklum
21 hours ago
Did I say moderate? I should have said small. Remember this is $400B over a 10-year period, i.e. $40B per year. The US federal budget is $6.1T per year, so not even 1% of the annual budget.
It is also small in terms of the extent of expenditure needed for such a conversion of the US energy production system. A cost estimate from 2019 suggested somewhere between $4.5T - $5.7T over the whole period:
* https://www.instituteforenergyresearch.org/renewable/cost-of...
* https://www.greentechmedia.com/articles/read/renewable-us-gr...
so $400B - even if we could assume that all goes directly to achieving the goal, which it does not - is under 10%:
ericd
21 hours ago
Where'd you get 10 years? I'm seeing "through September 2026" for the deployment of those funds. Also, it's taken them a bit to get back up to speed, since the political fallout around Solyndra basically caused them to go defunct for a decade, they've had to hire a lot of people to get back up to speed to be able to process loans.
Also, you can't look at the entire budget, entitlements like Medicare and Social Security dwarf everything else, you need to look at the discretionary part.
kortilla
20 hours ago
Funny how easy it is to trivialize spending other people’s money
einpoklum
19 hours ago
Almost as easy as polluting other people's air.
Anyway, I would say that "La propriete, c'est le vol" [1], so not much sentiment for the taxed. It _is_ a problem that US tax burden lies mostly on workers and very little of it on the rich and the larger corporations.
[1]: https://fr.wikipedia.org/wiki/La_propriété,_c'est_le_vol_!
ericd
18 hours ago
The top 10% of earners pay ~75% of income tax in the US, income taxes at least are pretty progressive, especially when you include the standard deduction. Maybe you mean the people who live off of investments rather than high earners? But you should consider that their effective tax rate is the corp tax rate plus cap gains/dividend rate.
Anyway, to your earlier point, I’m very much in favor of more resources into fighting climate change than what has been put into it, but I don’t think that what is needed is anywhere near what is considered acceptable by most, and given that, I’m quite happy with what this administration was able to put forth. Of course it’s a compromise.
ako
21 hours ago
It's only 20% of what Musk thinks he can cut from the government expenses.
DFHippie
20 hours ago
This doesn't seem like a terribly relevant metric. See for example this critique:
https://jabberwocking.com/elon-musk-knows-nothing-about-gove...
It is impossible to cut government expenses as much as Musk claims. It was akin to Trump claiming he would replace the ACA with something better or that Mexico would pay for the wall.
"The secret plan I'm hiding behind my back" is not a plan at all.
Retric
21 hours ago
Global warming will cause suffering, but extreme poverty was worse for billions than any projections from 2.0C above baseline. The global population grow by 3 billion people since 1988 yet extreme poverty is way down.
What nobody talks about is there’s not enough oil and natural gas left to miss 2C by much. At current consumption rates we run out of both in ~50-60 years. Coal isn’t competitive with renewables and as soon as we stop pumping hydrocarbons the associated influx of Methane also stops. So we’re almost guaranteed to miss 2.5C of global warming, and stopping at 2C is likely.
So congratulations humanity, all that money spent on R&D instead of directly cutting emissions without any solid alternatives actually worked!
jdietrich
21 hours ago
>What nobody talks about is there’s not enough oil and natural gas left to miss 2C by much.
That was true before recent developments in exploitation and conversion. Canada had proven oil reserves of 5 billion barrels in 2002, but by 2005 it had proven reserves of 180 billion barrels because the Alberta oil sands became viable. South America now has far more oil than the Middle East - it's oil that wasn't considered economically recoverable until about a decade ago. Over recent years, we have discovered far more oil and gas than we've burned. Coal doesn't have much of a future as an energy source for electricity generation, but it might have a future as a feedstock for synthetic liquid fuels.
We're probably going to leave most of those hydrocarbons in the ground, but only because of the huge progress that has been made in renewable energy technologies. If that progress stalls or there are big breakthroughs in hydrocarbon technology, then there's still a real risk of substantially exceeding 2C. We have reason to be optimistic, but not complacent.
Retric
17 hours ago
That estimate included 170 billion barrels from Canada and 380 billion from Venezuela. https://en.wikipedia.org/wiki/List_of_countries_by_proven_oi...
Oil in place comes to a much larger number, but we’re past the point where this oil is a net positive from an energy perspective. It’s a carbon intensive battery not a fuel source.
vlovich123
21 hours ago
> At current consumption rates we run out of both in ~50-60 years
At current prices. As prices go up new sources of fuel become economical and the cycle continues. Not to mention that methane emissions from agriculture are a significant contributor as well (30% from cows) so just removing hydrocarbons doesn’t solve that problem.
It seems like an unrealistic bet that hydrocarbon-based emissions drop to 0 just because you think we’ll run out of fuel in 50 years. Does that mean airplanes stop flying in 50 years? No one is making these bets in the marketplace alongside you for good reason. And remember, consumption grows quite a bit year over year so you’re looking at a much shorter time frame if your prediction were to be true.
Retric
21 hours ago
Consumption is also heavily tied to prices. Who is going to pay the equivalent of 50$/gallon when they can use an EV?
We use oil because it’s cheap not because it’s the only possible solution. It’s not that we’re going to run out 100% year X, it’s that as economies of scale end priced inherently spike. Gas stations can scale down to 1940’s levels by having most of them close, but giant fuel refineries, pipelines, etc need scale to be worth the maintenance.
geysersam
19 hours ago
For some things fossil fuels is still the only feasible (meaning, remotely close in cost) solution. Air fuel and fertilizer comes to mind.
Retric
19 hours ago
Not when we start talking 4x or more the price. The cost premium of biofuels for air travel aren’t that high and the scale can meet demand for long distance flights. Fertilizer from nitrogen in the atmosphere is again cost competitive relative to that kind of increase.
Batteries are fine for ocean shipping on a ~50 year timescale, and that basically covers burning fossil fuels. Using it as a feedstock for plastics etc is a non issue for climate change.
eimrine
13 hours ago
> methane emissions from agriculture are a significant contributor as well (30% from cows)
Activities such as tilling of fields, planting of crops, and shipment of products cause carbon dioxide emissions. Agriculture-related emissions of carbon dioxide account for around 11% of global greenhouse gas emissions.
osigurdson
21 hours ago
Isn't there a reasonable chance aircraft will be electric in 50 years?
dalyons
20 hours ago
Or running on synthetic fuel made with renewable energy
cozzyd
15 hours ago
Are these synthetic fuels not GHG producers?
abenga
4 hours ago
The assumption is they create Carbon that is recycled in the short term from the atmosphere, without digging up carbon that was sequestered millions of years ago.
worik
20 hours ago
...or flying with fairy wings
We can make anything up. Why not stick to the facts, as we know them, and reasonable projections?
There is no reasonable projection for any fuel other than fossil fuel to maintain the sort of flying we do now.
osigurdson
20 hours ago
We weren't talking about warp drives here. Certain types of aircraft are seem to be not that far off. 50 years is a ling time.
Unless you are deeply involved in battery technology, your prediction seems overly pessimistic.
Not suggesting the article below is in any way conclusive but just one of many that turn up on a basic google search.
https://abcnews.go.com/Business/passenger-electric-planes-be...
nradov
18 hours ago
This isn't a fantasy. Real airplanes have flown using synthetic kerosene manufactured using renewable energy sources. This isn't magic, it's just chemical engineering. Currently that fuel is significantly more expensive than fossil fuel but the cost differential will narrow over time.
worik
13 hours ago
> eal airplanes have flown using synthetic kerosene manufactured using renewable energy sources
That is a fantasy
The cost of doing that at a scle approaching what we use now rules it out except for niche uses
philipov
20 hours ago
Global warming will do more than cause suffering - it will cause resource starvation, especially water - and that will cause war and mass migration, which will destabilize the world on a scale much greater than poverty has.
t0bia_s
19 hours ago
How do you know?
Prbeek
20 hours ago
It will make much of Siberia habitable and the northern sea route viable. Russia is probably the only country that will benefit from global warming
mistrial9
20 hours ago
no civilization existing today will "benefit" .. permafrost melt is a fuse to a bomb, among many too numerous to mention.
jordanthoms
21 hours ago
Humans can be trusted to do the right thing, once all other possibilities have been exhausted.
Retric
21 hours ago
Except we actually did do the right thing.
US CO2 emissions in 2007 peaked at 6,016 million metric tons before consistently falling since down to 4,807 in 2023.
Per capita numbers are even better, but everyone assumes its from imports seemingly ignoring the massive reduction in coal use and vastly improved efficiency of just about everything. https://www.statista.com/statistics/1049662/fossil-us-carbon...
jordanthoms
21 hours ago
Oh, I agree on this. People were never going to accept, nor IMO should they have, a massive reduction in their living standards. New technology is the way to make people's lives better while also reducing global warming.
I just got back from a off-grid island here in New Zealand - 20 years ago, generators were everywhere and as soon as it got dark you'd hear nothing but the buzzing of running them all around you. Now there is solar everywhere and it's completely silent.
matteoraso
19 hours ago
>Oh, I agree on this. People were never going to accept, nor IMO should they have, a massive reduction in their living standards.
I don't even think a massive reduction is necessary, though. Just stop driving, and your carbon footprint shrinks massively. I bike everywhere, and I don't consider it a sacrifice at all. Obviously, there still needs to be commensurate increases in funding for public transit to match the decrease in driving, but most people would still save money by not having to buy gas anymore. Really, I think that living an eco-friendly life would mean improving life, not worsening it.
Retric
18 hours ago
You not driving requires other people to move everything you need very close to yourself. It doesn’t work for people farming corn/rice etc because that inherently requires lots of land which means everything can’t be close to them.
defrost
17 hours ago
I'm in farming, mineral exploration, mining.
"People farming" aren't expending fuel for personal use (save that which they are consuming for personal use) they're expending fuel on behalf of some {X} number of people who consume the produce.
We have farmers here (I kid you not) who live in a rural town centre and ride electric bikes to their work place, 4 thousand acre farms, upon which they operate giant machines for turning, seeding, and harvesting (and others for fire control, etc).
Personal fossil fuel usage should be reduced, it's just wasteful and counter productive, production fossil fuel usage needs to be made moe and more efficient an replaced to whatever degree possible (Agbots are a booming field).
Retric
17 hours ago
I’m wondering how viable you think it is to do that 7 days a week with a farm 60+ miles from the nearest town? Much of the midwestern US is really empty.
defrost
17 hours ago
It's viable to minimise personal use.
It's viable to live on a farm and rarely leave it, many do and many enjoy that lifestyle.
It's viable to have shopping and personal items shipped in with larger supply deliveries and fold that personal usage into the neccessary usage for production.
FWiW I grew up on a cattle station in one of the more remote parts of the planet, no proper roads, TV, shops, etc and somehow still managed to get a good education and write a few million SLOC of mapping, geophysics, and asset managent code in the 80's and 90's.
So yes - I do think its viable ( QED ).
Retric
15 hours ago
So, no. But you don’t want to actually say no.
Look we’ve got larger form factor EV’s, but suggesting electric bikes as a viable alternative when it’s clearly a niche case for rural commuters is pointless.
defrost
15 hours ago
Yes, it's viable. Are you incapable of reading? Read the comment again and don't strawman. Do you want people to have zero respect for you?
> when it’s clearly a niche case
The entire oh but rural people is your niche case that you bought up.
For more than a decade now countries such as the US, Australia, etc have been more urban than rural. The overwhelming vast bulk of people live within urban areas.
And still some twit will counter a comment suggesting more people should walk, use lighter more efficient vehicles, etc. with a niche but what about farmers type parry.
That's weak.
Efficient solutions for the future should pay attention to distributions of people, trips, resources, etc.
Sad weak counters focus on "but some are different from the many therefore .."
One size doesn't fit all and there will be exceptions.
Retric
12 hours ago
> Sad weak counters focus on "but some are different from the many therefore .."
> One size doesn't fit all and there will be exceptions.
There’s ”some” and then there’s 1 in 1,000 people, no that’s an edge case not a solution.
Hell, actually living on a farm is even more efficient, which is why it’s what the overwhelming majority of farmers do. You only brought it up because you found it interesting not because it was actually relevant to the discussion.
PS: Also, at least in the US if someone is living in a town that’s considered an urban area. The threshold for town is higher than the qualifications for urban area.
matteoraso
15 hours ago
> It doesn’t work for people farming corn/rice etc
Well duh, that's an edge case. Obviously I don't expect literally every single person to give up driving, but most people who use this website are white collar workers, or at least people who don't need to haul things on a regular basis.
Retric
9 hours ago
A rather large slice of the global populace was still farming in 1988. It’s that same carbon intensive industrial agriculture which enabled ever more urbanization.
matteoraso
9 hours ago
>A rather large slice of the global populace was still farming in 1988.
Okay? Last I checked, it's not 1988 anymore.
Retric
4 hours ago
Yea, but the argument was we should have cut global CO2 emissions more. Subsistence farming is better for the environment, less so for people.
It’s an inherent tradeoff, where significant emissions was required to lift them out of extreme poverty. It’s one thing to suggest developing economies shouldn’t have industrialized, but it’s unconscionable to accept the suffering that would have resulted.
nradov
10 hours ago
White collar workers are typically hauling their kids around on a regular basis. While it's possible to take a small child to a neighborhood school on a bike, we're often going to after-school activities that are too far away for cycling to be practical even with an e-bike. And forget about public transit, it often doesn't go to those places at all or is so slow that it's impossible to arrive on time.
mmooss
19 hours ago
> New technology is the way to make people's lives better while also reducing global warming.
It's not working, so it's fairy tale. Is there evidence that it's really an effective plan to save lives and money caused by climate change?
> People were never going to accept, nor IMO should they have, a massive reduction in their living standards.
The first is just a claim - people accept hardship all the time for one purpose or another (such as wars). Also, what is so sacrosanct about their living standards?
Also, the liability of climate change is already on the balance sheet - and the massive reduction is coming, due to climate change. Just think of all the dead people, all the people who lose their property, all the poverty.
It's like saying, 'I won't suffer a massive reduction in my spending in order to pay my mortgage.' You already have the liability; that sentence doesn't mean anything.
The question is, given that reality, what will you do? Make up fairy tales about fairy godparents giving you magic wands to solve you problem?
kortilla
20 hours ago
You mean batteries, right? Because Hawaii is off grid and has a ton of solar but at night has to switch to fossil generators.
vlovich123
21 hours ago
Did we or did we shift manufacturing abroad and that made our numbers better?
Retric
20 hours ago
Imports as a share of US GDP is basically identical between 2007 and 2023 at ~16%, it’s really not foreign manufacturing that’s relevant. https://www.macrotrends.net/global-metrics/countries/USA/uni...
pyrale
21 hours ago
> At current consumption rates we run out of both in ~50-60 years.
2050 is only 26 years away, though.
Tade0
21 hours ago
Considering that since 1988 world population went from a little over 5bln to 8bln, our output per capita rose by around 10%, which is not great, but also not terrible.
Meanwhile the number of infants globally peaked around 2013-2017 and according to revised estimates overall population will peak late this century reaching 10.4bln - largely in countries with a small carbon footprint anyway.
We're going to blow past that 2°C target and millions will die due to extreme weather, but I firmly believe life on Earth and our species will survive, especially now that the "business as usual" scenario is considered highly unlikely due to how differently e.g. China's coal usage changed compared to projections.
layer8
21 hours ago
> I firmly believe life on Earth and our species will survive
Few people are doubting that. The issue is that
> millions will die due to extreme weather
and due to climate-related wars, and life in general will become less pleasant. Just breathing air with higher CO2 concentration already isn’t that great.
hartator
21 hours ago
> Just breathing air with higher CO2 concentration already isn’t that great.
Or less O2. I wonder if there any study that does show any impact already or these are still speculations?
Filligree
21 hours ago
There isn't less O2. Even if all plants on earth disappeared (and animals somehow survived that), it would take millions of years before there's any measurable impact on O2 concentrations.
Moreover, there's no physiological impact whatsoever until you drop several percent.
hartator
20 hours ago
O2 does decrease and is measurable: https://www.oxygenlevels.org/
I think this is a more marketable concern than CO2 as without O2 most know that you can’t live.
nradov
10 hours ago
Those are meaningless changes. It's less than the effect of walking up a small hill in terms of inspired oxygen partial pressure.
onlyrealcuzzo
a day ago
We were asleep at the wheel for maybe 20 years too long on renewables, but the pace over the last 10+ years has been mind-boggling, and especially the pace the last 4 years.
Nothing is going to turn that tide meaningfully.
I'd like to know how anyone with an ounce of reality thinks we're going to reduce emissions substantially faster than we already are.
Rome wasn't built in a day.
cogman10
a day ago
> I'd like to know how anyone with an ounce of reality thinks we're going to reduce emissions substantially faster than we already are.
Depends on what you mean by "ounce of reality".
In reality, there's little that can be currently done mainly because of political policy. That's unlikely to change.
But, assuming policy could be changed, then there is actually quite a bit that could reduce emissions substantially much faster. Carbon taxes, better policies around railways (perhaps nationalizing and expanding ala india), more subsidies for renewable generation and battery production (perhaps funded by carbon taxes?). Stronger regulations on private vehicles (perhaps ban personal private ownership of large trucks and suvs?). But also trade deals and modernization efforts/investments with lagging countries to help them develop carbon free economies.
Now, I don't think policy change is likely. I do however think there are quiet a few policies that could significantly drive change faster than it is already going.
rob74
21 hours ago
Well, when even moderate gas price increases lead to either mass protests (e.g. https://apnews.com/article/colombia-protests-fuel-price-hike...) or the election of climate deniers (such as in the US), policy is (unfortunately for the climate) not going to change fast enough.
cogman10
20 hours ago
A 50% gas hike isn't moderate.
But I agree, it's something that'd have to be delicately done. Ideally phased in over time.
I also agree, probably wouldn't be fast enough, just faster to significantly faster than what we are currently doing.
mmooss
19 hours ago
> Rome wasn't built in a day.
We only have a day.
> I'd like to know how anyone with an ounce of reality thinks we're going to reduce emissions substantially faster than we already are.
The problem is political. The idea that politics is fixed, unchangeable, is obviously false. For example, look at the radical changes since 2015.
silver_silver
a day ago
In my mind the only realistic solution left is to make up the difference with solar radiation management, and I would bet it’s what will end up happening
idunnoman1222
a day ago
You won’t be able to stop poor countries from spraying aerosol into the stratosphere if it gets too hot on the ground
rwyinuse
a day ago
Yes, global geoengineering will be probably deployed to buy us some time to get off fossil fuels.
leptons
a day ago
Emissions will reduce substantially when the average temperature is 60C/140F across the globe. Life will be very different then.
sillywalk
16 hours ago
> We were asleep at the wheel for maybe 20 years too long on renewables, but the pace over the last 10+ years has been mind-boggling, and especially the pace the last 4 years.
The construction of "renewables" requires massive amounts of emissions. "Renewables" do not move us towards 'net zero', because the critical part of the NET is the removal and storage of tens of billions of tonnes of CO2 from the atmosphere, every year. Forever. At least that's my non-technical understanding of what "net zero" means.
> I'd like to know how anyone with an ounce of reality thinks we're going to reduce emissions substantially faster than we already are.
For anyone with "an ounce of reality"' we aren't reducing emissions. We haven't reduced our emissions at all. It's the opposite, they've gone up every year, I believe around 50-60 % since 1990 when we agreed to reduce them.
onlyrealcuzzo
14 hours ago
Emissions per kwh has gone down.
kortilla
20 hours ago
Nope, being a doomer makes you look dumb and people dismiss your whole message when your overblown predictions don’t come true.
Think about the illegal immigration hawks talking about how people will cross the borders and start raping and pillaging everything in their path. When that of course turns out to be false, people dismiss their position entirely rather than look at actual issues.
rrix2
20 hours ago
> When that of course turns out to be false, people dismiss their position entirely rather than look at actual issues.
this flies in the face of a lifetime of experience talking about immigration with family who lives in a southern border state...
radicalbyte
21 hours ago
We've cut our emissions down massively, our electricity is pure solar, our meat consumption is 30% of what it was and we've flown once in 5 years (and then a fairly short flight). Home heating is still gas but we've halved usage by dropping the temp to 18c (from 21c) and better insulation.
Cars are still petrol but we've gone from 50k km / year to 10k km / year most made in a tiny 1 litre car (the other is a Prius). We don't have enough solar to cover that and the electric mix here is carbon intensive enough that we're better off using the petrol car until it needs replacing before switching to electric.
Hopefully at some point America will start taking their emissions seriously; it's crazy that you guys are so inefficient.
gtvwill
21 hours ago
Eh it's not actually you that needs to change all that much but more industrial processes need to be change. E.g. I worked on a exploration drill rig that hunted gold core. We burnt well over 400,000 litres of diesel a year keeping that thing running. Closer to 500,000 after you count all the fuel burnt to keep the operator alive, fed and transported. 1 rig. It looked for gold that mostly didn't end up in electronics.
Arguably it provided bugger all actual physical good for society in return for its consumption. It got some fat cats rich and employed a half dozen humans. It consumed insane amounts of resources.
Your consumption is nothing compared to these ends of industry, they just try and make you think it does. Industrial industries worldwide need drastic changes.
ralphhughes
5 hours ago
I assume all that diesel went straight into a generator for electricity? So in your opinion, could the drill rig have added a trailer full of fold out solar panels and battery storage and still functioned? (I know nothing about drilling for gold, just curious)
tim333
5 hours ago
>Nor are people looking at the data and going, "yeah, I ought to do something...
Seems to me the answer is a global plan that will actually control emissions in a cost effective way - say taxes on carbon, free trade in solar/batteries/evs and trade tariffs for countries that try to ignore that. I'd vote for that.
Failing that, me cancelling the trip to Thailand is not going to make a noticable difference, so whatever.
In the UK we mostly do dumb stuff to make our electricity almost the costliest in the world, kill industry and make no global dent in CO2. Stuff like that is why emissions have gone from 22 to 40 gt/y.
consteval
18 hours ago
With a new conservative presidency, oil subsidies, and a climate change denier as the proposed head of the Department of Energy, it's looking like the US will have a regression for the next four years, in the best case.
api
a day ago
No, doomerism discourages people from trying. It also comes from the same place intellectually as the luddite wing of the green movement, which is one major reason we didn't replace coal with nuclear energy decades ago. (The others being that coal is cheap and fossil fuel lobbyists are powerful. But without the luddite greens opposing it we might have gotten somewhere.)
Doomerism leads people to go ahead and buy a ridiculous gas hog SUV they don't need because why not, we're all gonna die. Doomerism means we should cancel all our green and next-generation nuclear development because it doesn't matter. We're all gonna die.
Look up the Moore's law like progress of solar, wind, and batteries. Look up how much renewable energy we're adding, the uptake rate for EVs, etc. We are not doing enough but we are not doing nothing.
The previous poster is right. The global average is below the threshold and the global average is the only number that matters re: physics. Physics doesn't care about politics. The goal now must be to keep chipping away at those higher numbers in developed economies and to make sure the developing world gets renewable and nuclear energy before they decide to industrialize with coal like China did.
Either that or at least make sure we're cutting emissions in mature economies as fast or faster than developing economy emissions are increasing so the average does not exceed the limit.
nojvek
a day ago
China is currently at the forefront of deploying renewable energy. They install more Solar than rest of the world combined. They are investing 100s of Billions in manufacturing cheaper solar panels and batteries. China now has >50% new cars sold as EVs.
China sees this as an opportunity and delivering on it. Meanwhile majority of Americans voted for Trump, the sentiment is anti climate change and 'drill baby drill!'.
The cheaper Solar and batteries become, the more they get deployed. Like we solved hole in the Ozone, I'm optimistic we'll transition to a net zero energy future but pessimistic that US may get left behind and it'll be too late for many of the industries to compete with China. We are too short term focused.
rwyinuse
a day ago
With upcoming US government it's starting to feel like the Chinese Communist party isn't all that bad in comparison. At least they aren't actively trying to kill future generations simply to protect big oil profits and to oppose democrats.
I wouldn't be surprised if China overtakes the US completely in science and technology with the way things are going.
lovecg
21 hours ago
Give it time. Centrally commanded dictatorships always seem to hum along right to the point of sudden collapse.
nojvek
33 minutes ago
IMO current US leadership isn't too far from a 'centrally commanded dictatorship'.
Yes, China has many problems by their rise is exemplary. Especially in being the world's factory and having such a large export surplus. Their foray into dominating steel, high speed rail, solar panels, batteries, electronics e.t.c
They seem to be making good bets on the future, while US is holding on their bets from the last century.
griffzhowl
18 hours ago
Hmm, on the other hand you could argue that China has been a centrally commanded dictatorship in one form or another for over 2000 years
mcphage
18 hours ago
It has also collapsed several times in that span.
griffzhowl
7 hours ago
Yes, but then replaced by another dictatorship
mcphage
3 hours ago
Yep
tap-snap-or-nap
21 hours ago
People believed the same about Germany about a century ago, we know the path ahead did not end so well for anybody. This time around though, many nations possess nuclear weapons.
baxtr
21 hours ago
> But it also isn't hurting because we'd be doing exactly the same nothing if they were cheerful.
Of course it is hurting. If we really want people to change then we need to understand human psychology.
We need to create hope and not fear. Ask Kamala how fearmongering worked for her.
abdullahkhalids
a day ago
I don't think I am presenting outliers (though I have edited the list to add some context).
US+China+Europe+Australia have cumulatively emitted 70% of all historical emissions. They are still 3x the world average and the estimated target. That's why they are on the list.
China is there because it is a common villain in these discussion. The low-(middle)-income countries are, in my opinion, never going to emit much more than they do now. They will never contribute to the problem but will feel all the effects.
returningfory2
a day ago
If you follow your argument logically, it says there's nothing to do and we're in a good place.
You said we need to have 5.4tCO2/person/year on average across the world. You then presented a table that shows that we are in fact _under_ this target (4.7t). In your follow-up comment you claim that the lower-income countries are "never going to emit much more than they do now". So by your argument the world average will probably stay below the 5.4t goal and we're on target.
abdullahkhalids
21 hours ago
The target of 5.4tCO2/person/year is assuming we take a linear path down from 2023 emissions to zero emissions in 2050. It is the halfway point on that line.
Real world reductions (or increases) won't follow a linear path. Global population is also increasing. The number is just a rough estimate to show which countries are dropping the ball.
willsmith72
21 hours ago
You're missing the core of the argument:
"If we assume that we get to net zero by 2050,"...
tzs
21 hours ago
I think the point is that unless we can make a good case that some people have some sort of natural or divine right to a bigger share of the world's total CO2 emissions budget then other do, we have a lot of countries that are over budget.
It's hard to tell the poorer countries that they should stay poor so as to keep the world under budget, but using fossil fuels for many of them is the only to become not poor in a reasonable timeframe with their existing resources.
Just considering the welfare of their own citizens and their own resources their best path will often be a rapid increase in fossil fuels to get to a reasonable level of wealth and then start emphasizing renewables.
Since it is unlikely that the existing wealthy countries can reduce emissions enough to keep the world under budget as the developing countries follow the aforementioned path, we probably need the wealthy countries to help out the poorer countries to try to speed things up so they go through the fossil fuel phase faster.
nradov
20 hours ago
Sounds good, but who counts as poor? If you mean countries like Honduras then sure, let's help them out as long as they have effective financial controls to prevent corruption. But China is the largest emitter, and while they still have a huge number of poor people they also have nuclear weapons aimed at us. There's no possible political scenario where US taxpayers agree to subsidize China.
lotsofpulp
a day ago
>it’s this type of doomerism that turns them off of the topic entirely.
In my experience, it’s the prospect of having to give up expected or dreamed about large homes, large vehicles, non seasonal/local fruits and vegetables, cheap electronics, and vacations involving flights.
exe34
a day ago
try suggesting that people should eat more vegetables and less meat - they see red and shout down any chance of reasoning.
mjamesaustin
a day ago
One person's individual change is a drop of water in the ocean when compared to the vast amount of emissions and pollution and waste produced at scale by corporations.
Arguing to your neighbor why they should recycle their plastic water bottle can at most make an infinitesimal difference.
Creating a legal responsibility for Coca Cola to clean up the billions of plastic bottles it produces annually, on the other hand, could change the world.
Vegenoid
21 hours ago
I don’t understand these attempts to wave away personal responsibility, and pin the whole thing on corporations.
It’s both. We need corporations to emit less, and they are the biggest emitters, and they do what they do for two reasons:
1. They are permitted to. Yes, government needs to intervene and prevent some of the things they do.
2. People keep giving them money, rewarding their bad behavior and providing them the means and motive to keep doing it.
We need the populace to want to make change, by voting for legislators that pass laws limiting corporations and by voting with their wallets. These usually go hand in hand.
I know there are people who vote for legislators/laws that limit consumption, who don’t make any effort to limit consumption themselves, but I don’t think there’s that many. People generally don’t want laws that change the way they are living, they want laws that make other people live the way they are living.
We don’t need to shame people for consumption, that isn’t helpful, but writing off personal responsibility is also unhelpful.
layer8
21 hours ago
This is basically Downs’ paradox. Only systemic change can turn things around, but any given individual’s responsibility for systemic change is generally negligible.
lotsofpulp
21 hours ago
> I know there are people who vote for legislators/laws that limit consumption, who don’t make any effort to limit consumption themselves, but I don’t think there’s that many. People generally don’t want laws that change the way they are living, they want laws that make other people live the way they are living.
There is nothing wrong with this behavior. I will vote today for everyone to curb consumption, but I see no reason to make the sacrifice alone.
Vegenoid
21 hours ago
I am not coming at it from a moral view, simply a practical one: I don’t think many people can sustain this dissonance. I don’t think people are very motivated to vote for things that would make them change their daily life.
There are examples that would show me wrong, like plastic grocery bag bans. But on the other hand, there haven’t been very many such bans, and banning plastic bags is a relatively minor inconvenience, and does very little to slow climate change.
layer8
21 hours ago
> I am not coming at it from a moral view, simply a practical one: I don’t think many people can sustain this dissonance.
This is assuming that the dissonance is hurting more than the renunciation. People are already quite good at ignoring dissonances. And the causal effects are so removed from daily experience that often there isn’t that great of a dissonance in the first place.
Vegenoid
21 hours ago
> This is assuming that the dissonance is hurting more than the renunciation.
It’s not about “the dissonance is painful, so they seek to correct it by not voting for reduced consumption”.
It’s “voting to reduce consumption takes effort, in knowing what to vote for and in actually casting a vote, and people are unlikely to put in that effort if they are not putting in any effort elsewhere”.
“Dissonance” was a poor choice of words for what I was trying to communicate.
layer8
20 hours ago
I thought you were talking about the dissonance of voting for renunciation while not voluntarily renouncing until forced by the system. I don’t think it’s uncommon.
trealira
21 hours ago
That seems like a convenient way to not change anything. I guarantee most people would still complain heavily if the price of meat went up because something like a carbon tax were applied to it, even though the effect would be to reduce the meat consumption of the entire population. The politicians who implemented that would be voted out instantly.
ben_w
a day ago
> One person's individual change is a drop of water in the ocean when compared to the vast amount of emissions and pollution and waste produced at scale by corporations.
With emphasis on "One".
There's 8 billion of us; our diets have varied environmental impacts; and collectively agriculture is, though not the biggest problem, a big enough problem that we can't solve climate change without also fixing it.
https://ourworldindata.org/emissions-by-sector
Also, the problem with framing it as the fault of corporations, is that the corporations do what they do in response to demand.
And the laws come with costs: this is a perennial issue during elections and "over-regulation" has been the battle cry of UK and US conservatives for as long as I've been paying attention to politics — so sure, if I was world dictator I could make it happen (and build a global power grid for green energy, we don't even need superconductors for that), but that's not the world we live in.
Making a convincing reason for consumers to demand different things, or for business to choose sustainability just because it's cheaper, or shifting the Overton Window so the relevant laws aren't just a political football, that's hard.
antisthenes
a day ago
> Creating a legal responsibility for Coca Cola to clean up the billions of plastic bottles it produces annually, on the other hand, could change the world.
It would change the world in a sense of Coca Cola either going bankrupt, or shrinking to the point of irrelevance, succumbing to competitive pressure of corporations that aren't forced to do such cleanups.
Edit: Do better, HN. Explain why you disagree. This argument is a delusional meme, as if people were not the primary consumers of corporations' products. Corporations are reactionary at best and believing there's 0% responsibility on the consumer is a 5 year old child mentality.
davidcbc
a day ago
If they aren't profitable when taking into account their negative externalities than the owners are stealing from the rest of the world and they should go bankrupt. They'd probably figure out a better way to do business instead though
tsunagatta
a day ago
The incoming government in America loves the idea of tariffs; why not frame it as part of a trade war in a theoretical government set on ending climate change? Place heavy tariffs on any goods that do not have the same cleanup obligations.
consteval
18 hours ago
I don't understand why enacting a 20% tariff on all imports makes sense, but enacting a 20% carbon tax on every company in order to pay off the damage of pollution is literally unthinkable and would cause every company to go under.
The days of letting companies do whatever the fuck they want and doing nothing to steer their incentives in the right direction are gone. It doesn't work, end of. We need to nudge them to do the right thing, and the only thing humans care about is money.
exe34
11 hours ago
tariffs are there to give Western oligarchs an extra stipend in the form of more competitive pricing without the work. a carbon tax would punish Western oligarchs along with eastern ones, and therefore not acceptable.
consteval
an hour ago
Honestly I doubt it, because these Western oligarchs rely on cheaper labor and manufacturing in Eastern countries. I don't think any domestic companies will be able to compete even with the tariffs.
roamerz
a day ago
After reading this comment I wonder how much making Ozempic free for all would affect global CO2 emissions.
ben_w
a day ago
My guess would be 3%:
1) I have no reason to think the carbon intensity per calorie would change
2) it doesn't take much overeating per day to build up, so I'd assume semaglutide based weight reduction reduces calorie intake by about 25% per day unless someone gives me a study (can't find myself as search results biased to news not science)
and 3) all agriculture combined is about 12% of emissions
multiply together and that would be about 3% of global emissions, which is a start, but not sufficient — we need to target 99.9% for long term sustainability
iechoz6H
a day ago
Unless they're a vegetarian presumably? I guess 'people' here means North Americans?
exe34
a day ago
well quite. I'm in the UK myself.
dgfitz
a day ago
75% of the US is overweight or obese. You’re trying to make a partisan issue out of a not-partisan issue. Please stop.
exe34
a day ago
I would suggest that you are the one who just made it partisan. I'm in the UK personally, but I can immediately tell which side of the political spectrum you are, given the reflexive defence.
Ekaros
a day ago
Similar thing happens when you suggest about living in cages and not single family houses... Or banning cars altogether...
ben_w
a day ago
> Similar thing happens when you suggest about living in cages
Cages?
Who is even suggesting that?
dclowd9901
21 hours ago
Do you think there’s ever a point where we say “guys, if we don’t do something now, we’re all Dead”?
taeric
19 hours ago
I'll add my voice to the complaints on doomerism. Frustrating how much of the discourse is on blame and shame. Ignoring that we have done rather well compared to the bad targets for quite a while.
consteval
18 hours ago
When our incoming president proposes to appoint a climate change denier as the head of the Department of Energy and also plans to raise oil subsidies while dissolving subsidies for clean energy, I think perhaps enough shame has not been handed out.
We've let blatant lies and science denial get way too far. We currently have people completely detached from reality running our nation states, and we have droves of people who will believe them when they say the sky is green. From a sociopolitical perspective, it's bad.
taeric
18 hours ago
I voted against this administration, and I still think shame is the wrong choice. Agreed we have allowed blatant lies too much leeway. But progress can be had without shame.
I think back to when better lights were hitting the market. People would regularly scold folks for having their current lights on too long. "Just turn your lights out to save energy" was a common view. It was comically misguided, though. Modern lights use a laughably low amount of energy.
Same goes for a lot. People love to complain that things don't last as long. Ignoring that energy use is plummeting on things. It is still largely valid that you should not replace a car on a whim. I think justifying my 2000 truck is getting harder every year.
Granted, to your point, seeing Buttigieg have to defend encouraging electric vehicles was frustrating.
To that end, I'll push it is less shame that is needed, but more accountability. Especially at the leadership level.
code_runner
21 hours ago
Exactly. “It’s bad and you should feel bad and it can’t be fixed”
Well… ok I guess I won’t stress about it too much since I can’t change it? I was already powerless but now effort is futile.
I’d like a real straw I guess
zahlman
21 hours ago
>This is what emissions look like currently [2]
So, the world average is currently below the ration, and thus as long as we're actually headed for that net zero we're going to be in reasonably good shape?
>Guess what's going to happen and who is going to suffer, despite not doing anything.
Oh, this is actually about calling people bad because of what country they live in, never mind where the innovation is going to come from that would actually make net zero possible (assuming it actually is).
Carry on, then, I guess.
Russia is not far behind that top 5 list, at 12.5t/person/year, by the way.
teamonkey
20 hours ago
2 degrees C is not a good outcome for the world, it’s just a moderately aggressive target that we might be able to hit. The world will still be changed significantly if we do manage to hit the 2C target (which isn’t a given). Working to reduce our output more before then would certainly be better.
zahlman
20 hours ago
I mean "good" in the sense of long-term achievement of reasonably high quality of life for humanity, without a collapse in human population. (My understanding is that if there are no catastrophes, the current trajectory is expected to level out somewhere around 11 billion. Of course, if we also happen as a species to make radical progress on life extension, that will also have to weigh in to long-term changes in reproductive behaviour, etc.)
Of course we should all do what we can. (I eat less meat than I used to, and don't drive.)
layer8
21 hours ago
> as long as we're actually headed for that net zero we're going to be in reasonably good shape?
Only as long as we actually reach net zero by 2050, is my understanding.
ithkuil
21 hours ago
This. Also because it's not like low income countries are going to stay low emission forever.
If you think about it, that's disrespectful towards people living there; they are not noble savages.
They are people just like you and me who are just a little bit behind in the development curve and they will surely want to have all the goodies that we have and emit all the greenhouse gasses associated with that lifestyle.
Countries who are currently high emitters but also applying active measures to curb it must be praised instead of pointing fingers. The political will to improve things is fragile and people can easily vote for populists that will easily exploit resistance towards guilt shaming.
zahlman
20 hours ago
>If you think about it, that's disrespectful towards people living there; they are not noble savages.... they will surely want to have all the goodies that we have and emit all the greenhouse gasses associated with that lifestyle.
The hope is that whatever the developed world has settled on by 2050 to achieve net zero, lower-income countries will be able to switch to directly instead of going through a phase of fossil fuel consumption. China was too early; India for example might see a much healthier trajectory. The association of greenhouse gasses with the lifestyle of the richest countries is hoped to be only incidental.
isodev
21 hours ago
The next target should not be 2.0C but rather 1.6. Understand that everything we’re adding is going to cost us going forward. 2.0 is when the cost become inconceivably high.
kingkongjaffa
a day ago
> United Arab Emirates 25.8 t
> Saudi Arabia 18.2 t
> Australia 15.0 t
These are all pretty low population though so net CO2 from these countries is not the largest.
In terms of per capita, what drives this? These places are hot, is it the 24/7 Air conditioning running?
mrkeen
a day ago
It could make more sense to bucket these three together if you're looking for what they have in common.
Australia 14.5t
United States 14.3t
Canada 14.0t
My guesses are: houses rather than apartments, driving everywhere, percentage of SUVS compared to sedans, meat consumption, general consumerism?cosmic_cheese
a day ago
In the US, we also have large numbers of homes that have not been brought up to modern efficiency standards and cheap/outdated, grossly inefficient heating/cooling contributing. That number could probably be brought down quite significantly without negatively impacting quality of life by “simply” (I’m aware it’s a huge undertaking) properly insulating homes and in urban/suburban areas banning heating/cooling solutions below a certain efficiency threshold.
dangravell
9 hours ago
The tragedy of of this is that these are improvements that would actually improve life in these houses - making them healthier, more comfortable. Trouble is, retrofit is expensive.
vivekd
a day ago
I'm Canadian most of our emissions this past year was because of forrest fires.
quonn
a day ago
That is balanced by not having to heat.
The more likely explanation for the first two is that plenty of fossil fuels are available so they are used inefficiently.
ducttapecrown
a day ago
Probably mining and refining natural gas and oil?
whazor
7 hours ago
In that case there is so much to win by improving the mining/refining processes.
alwayslikethis
21 hours ago
AC is pretty efficient and the temperature differential it needs to overcome is smaller than winter heating in most places. For these places specifically it seems to obviously be the production of oil for the first two and coal for the third. The availability of fossil fuels tends to make them cheaper and consequently a lot more is used.
abdullahkhalids
a day ago
I generated this list a few months ago. I picked a threshold population (I think 10 million) and listed the top 5 and then some other groups. I think I would also guess that resource rich countries spend a lot on cars and AC.
FYI, I edited list with latest numbers after your comment.
animex
21 hours ago
I wonder if there should be some scaling for extreme hot/cold countries. Most of our output here in Canada must be related to heating during our 6 months of cold climate.
abdullahkhalids
21 hours ago
Electricity and heat is indeed the largest sector by emissions in Canada (about a quarter) [1]. Though depends on where you are. In BC all electricity is hydropower, and if you have electric heating, your emissions are close to zero.
Transport is also about a quarter. So Canada can indeed cut emissions in half with present day tech by fixing these two sectors. Still a long way to go.
Also note that Estonia is at 7.3t, Finland 5.6t, Sweden 3.5t (Sweden was 8.6t in 1980). So climate is not really an excuse. It is just politics.
[1] https://ourworldindata.org/grapher/ghg-emissions-by-sector?t...
ant6n
16 hours ago
There’s lots of inefficiencies all around in Canada. Poor insulation, too much suburbanization, not enough heat pumps. Transportation is also very inefficient (not enough public transit, too much suburbanization, not enough rail).
Tar sands are an issue, as is other oil.
iLoveOncall
21 hours ago
> Guess what's going to happen and who is going to suffer
Well according to your own data which shows the average comfortably below the target number, nothing will happen and nobody will suffer?
blackeyeblitzar
a day ago
Are those figures per capita for consumers or producers? Is Saudi Arabia scoring high because of the oil industry?
> Guess what's going to happen and who is going to suffer, despite not doing anything.
Low income countries also don’t have good tracking or data. I’ve seen lots of practices in developing countries that are really damaging environmentally (GHGs and other things) that probably don’t get reported or tracked anywhere, because they’re so local (things like illegal refineries, manufacturing operations with no waste disposal, stubble burning, etc). But they exist. In part those damaging practices are here because of globalism (economic pressure) and changing lifestyles, so it’s not their fault. But my point is we probably just need a global reduction in luxury and quality of life ultimately.
speakfreely
19 hours ago
> But my point is we probably just need a global reduction in luxury and quality of life ultimately.
Of all proposed political policies, "degrowth" is the standout for being the most ludicrous ask of developing countries. A lot of people don't like hearing it, but human quality of life on a global scale is measured in energy consumption. Trying to convince anyone to accept a lower quality of life, especially people who were subsistence farmers a generation ago, is a losing proposition.
abdullahkhalids
a day ago
These are consumption based numbers. So any oil that Saudi Arabia exports that is then burned elsewhere is counted in the other country's number.
Yes, there are uncertainties in these numbers, and it is quite unfortunate that OWID does not state them. However, I don't think the uncertainties are that high. Emissions from fossil fuel burning or agriculture are most of global emissions (>90%) and are quite easy to track in bulk.