The world needs to either decide that we will confront the developing world and tell them they cannot build power plants like we did (unlikely), or start figuring out how to ameliorate the effects of the warming.
It is fundamentally unserious for smaller-population rich countries to think they can cut their own emissions enough to make a dent, unless they plan to return their populations to the pre-electric age.
According to the European Commission’s Emissions Database for Global Atmospheric Research (EDGAR), China and India combined (~35.5% of the human population) account for roughly 38% of global greenhouse gas emissions. Which is indeed an overshoot, albeit not of terribly epic proportions.
However, per-capita - on both a 100-year-effect and a 20-year-effect timeframe - the USA is easily the leader in emissions per person, and the USA also records the largest absolute increases ongoing.
The figures, which already take the variable potency/effect of different gas types into account, show annual per-person greenhouse gas emissions (in CO2 equivalent) of 17.3 Tonnes-per-person (USA), 11.1 Tpp (China), 5.6 Tpp (EU27), 2.2 Tpp (India) on the 100 year impact scale.
On the 20 year impact scale ("the amount 1 person releases in 1 year will trap the same amount of heat as XX tonnes of pure carbon-dioxide would"), which much better takes into account the balance of current agricultural practices etc, the USA = 21.5 Tpp, China = 15.8, EU = 6.8, India = 4.1.
The United States also recorded the largest absolute increase between 2024 and 2025 (+131.5 Mt CO2eq, or +2.2%), followed by Indonesia (+16.1 Mt CO2eq, or +1.2%).
So, any message which - when translated through the lens of practical reality - is essentially saying to the developing world "Please either tighten your belts, or be less populous" seems a very challenging expectation, if not outright-unviable by almost any other metric or ethic.
It isn't just cheap kotchkes being consumed by western consumers anymore.
Chinese, Indian, Vietnamese, Nigerian, Brazilian, and other consumers are also able to consume much more than they were 40 years ago (which is when most HNers appear to have been born).
40 years ago you'd be hard pressed to find plastic wrapped packaged food in a village in rural China or India. Now they're available everywhere.
40 years ago the only people who could dream of buying a car let alone a motorcycle or moped in those villages would have been local politicos. Now they are well within grasp for most households.
As large countries like India, Vietnam, the rest of ASEAN, and other regions are expected to grow in the 6-8% for at least the next decade, expect carbon output to also grow - not as the same degree as before, but still significantly nonetheless.
So. Do you propose to massively subsidize solar and batteries for all developing countries? That's the only thing that has a chance of working.
Anything else is dead on arrival. They will tell you politely to fuck off, and they will be in the right.
Without money how will they "ameliorate the effects of climate change"? Rich countries didn't help them prevent climate change, so why would poor countries think they'd get help to deal with it when it arrives?
per capita energy use in MJ ( Mega Joules)
USA 300,000 MJ per person.
India 28,000 MJ per person
China 130, 000 MJ per person
China, India, Vietnam, Indonesia. Brazil, Nigeria, and others are continuing to build out capacity. While this capacity is much more green than past buildouts, it's still in aggregate going to have a significant downstream impact on overall GHG emissions.
It doesn't matter who deploys more renewables or less when countries like China, India, and others continue to expand coal and ONG at reduced but still significant rates.
But they can morally push back and say North America, Europe and Japan industrialized via similar externalities.
And the reality is countries don't care. This is why China is now export controlling solar technology and IP [0] at the expense of India and other large members of the global south.
The reality is most countries are going to rush as much capacity as they can until the externalities can no longer be ignored en masse (probably by 2040-45).
[0] - https://www.bloomberg.com/news/articles/2026-10-16/china-mov...
And India as well as much of ASEAN view coal and ONG as core stopgaps or important intermidate inputs for their own industrialization efforts (eg. Steelmaking has hard dependencies on thermal coal, roadbuilding and concrete have hard oil dependencies as intermediate parts).
Much of the overall impact from GHGs comes from the hard industrial dependencies in fertilizers, steel, pharmaceuticals, and other heavy industries that countries need to industrialize.
Rarely, does the messaging talk about actual long-term harms in the form of economic costs with numbers. And if they do, it’s worse than convincing people to be concerned about the extended weather forecast for next month…
It’s really a trade-off that should be discussed with less emotion and more reason. Unfortunately, it involves a timescale that is beyond that of political terms, and remaining lifetimes of elected officials…
There's numerous times I've thought of checking out with the (little) wealth I have and becoming a hitch-hiking vagrant and enjoying my time in nature with friends instead.
We have known the exact problem for 50 years. Our dipshit president is still forcing open coal plants that no one wants or needs. We aren't even close to solving any of this, except by pure chance through technical advancement. But I fully expect parts of the world to hit 135 degrees within a decade, killing every human in the area. Then comes endless refugee waves, closed borders and a deep discount on human life.
Maybe then we can start to talk solutions. But not before.
You can see an example of that attitude in this very thread: https://news.ycombinator.com/item?id=50202929
No, we didn't try. We didn't even pretend to try. These are all lies.
The truth is even if India and China didn't exist on the earth, we'd be heading for the same fate. Maybe 20 years later, but in the same direction. Europe and North America emit just as much carbon as China even today[1], despite China building a coal plant every time you take a breath or whatever "fact" fossil-heads come up with.
China has probably made the best effort out of everyone, with its prioritization of solar, wind, and batteries. But even that was too little, too late.
Now the target is 2.5C.
1. https://ourworldindata.org/grapher/annual-co-emissions-by-re...
[UNEP] "Emissions Gap Report 2026" https://wedocs.unep.org/items/87c02cac-8da8-4c28-ba61-c846ee...
How to use AI to solve this problem?
Energy storage?
A new Captain Planet? https://news.ycombinator.com/item?id=48043192
Not holding my breath.
It would require relentless global catastrophe to move humans globally. And even then many would dig in and resist.
The spotty nature of climate impact on a globe wide scale will likely never allow a shared assessment of risk.
Not to mention the need for most of humanity to stick to a plan over sufficiently long timescales.