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Posted by doener 6 hours ago

There is unequivocal evidence that Earth is warming (2024)(science.nasa.gov)
186 points | 190 commentspage 3
shoobiedoo 5 hours ago|
[dead]
grigio 3 hours ago||
I just follow BlackRock if they stopped to fund green tech, it means the global warming is fixed /s
doener 6 hours ago||
Why did the Trump regime not discover and eradicate this heretical sentence?
rebolek 6 hours ago|
It will now.
declan_roberts 5 hours ago||
So what are we going to do about China?
epistasis 5 hours ago||
We don't have to do anything about China, "China’s CO2 emissions have now been ‘flat or falling’ for 21 months"

https://www.carbonbrief.org/analysis-chinas-co2-emissions-ha...

China is building clean energy for a good chunk of the world, including itself.

A better question may be: What is the US going to do to make up for its historical emissions? The US got wealthy by creating far more emissions than China, and all those historical emissions are now a problem for the rest of the world.

If people in the US try to turn climate action into a blame game, it will end very very poorly for the US.

ahmeneeroe-v2 5 hours ago|||
>If people in the US try to turn climate action into a blame game, it will end very very poorly for the US.

Pure fantasy. What will happen to the US and who will do it to us?

epistasis 4 hours ago||
The US can't even get countries to enter trade agreements anymore, because it's throwing around threats of large tariffs and annexation of others' lands. The world could drop the dollar as the reserve currency, something that was gradually happening but is now accelerating.

If the US starts trying to force other countries into climate action without taking into account its own contributions, the US will likely cut out of the global economy, and become far poorer as the rest of the world surpasses its wealth through vigorous trade.

The US was the sole remaining superpower, but has recently decided to only occupy a much weaker position with a mere "sphere of influence" and ceding leadership in other parts of the world to others. The US is signalling to allies in Europe that it will no longer lead, that the prior world is over and the US is bugging out, meaning Europe will gain far more influence.

The more that the US attacks others without providing any leadership, the less that the US will be able to take from the world. Up until recently, the US's position of massive economic strength was largely due to it's dominant position among nations and the goodwill that others had towards it. Turning the climate problem into a blame game on other countries would further weaken the US's position and options.

k33n 2 hours ago||
The US defines the terms of the vast majority of global trade agreements and there’s no indication that will ever change. Americans get it — global academia hates Trump and to some extent America itself. In a way it’s understandable because you all seem to believe in your “right” to pick winners and losers. The world doesn’t actually work that way.
epistasis 42 minutes ago||
Trump in his first term gave the Pacific over to China, who now defines terms over there. In his second term, Trump is cutting the US out of leadership in Europe, leading to growing economic trade agreements that exclude the US.

You seem to think these solid critiques about the inherent weakness of Trump are somehow mere partisanship, rather than the actual unwinding of US leadership around the world.

I'm not part of global academia, I'm just a consumer of news that is willing to listen to things outside of a partisan bubble. The world is shifting away from the US, to the US's detriment. We have an exceptionally weak president who acts like what a weak person imagines a strong person is like, and it's scaring off all our allies.

> In a way it’s understandable because you all seem to believe in your “right” to pick winners and losers. The world doesn’t actually work that way.

I do not know whatyou mean by this, you think I'm picking winners and losers? The US is picking winners and losers? Global academia is picking?Picking either antecedent does not allow me to find any meaning in your sentence.

seanw444 5 hours ago|||
Climate reparations now!
hannob 5 hours ago|||
If the rest of the world wants to still have an industry once we finally decide to seriously use green technology, they should quickly catch up to China - if that's still possible.

While China is still very reliant on fossil-fuels, and particularly dirty coal, they're at the same time working on dominating the post-fossil age at astonishing speed. After they already dominate solar and batteries, they're working on doing the same for a number of other future green industries. They are already dominating future technologies like Green Methanol that most people in Europe or the US have never heard of.

doug_durham 5 hours ago|||
A troll response I presume. Or perhaps sarcasm without the indicator.
declan_roberts 5 hours ago||
Not a troll comment. China produces as much or more CO2 as much as the next 5 countries combined.

It's logical to start with the king of greenhouse emissions if you want to stop global warming.

renjimen 5 hours ago|||
Not per capita. The US is still the worst large country. If you account for offshoring manufacturing then the US looks even worse.

https://ourworldindata.org/co2-and-greenhouse-gas-emissions

rayiner 5 hours ago|||
The climate doesn’t care about per capita obviously.
renjimen 4 hours ago|||
Climate doesn't care about political borders either.

But per capita is more informative when thinking about policy for curbing emissions, which is how we actually change our effect on the climate.

Hikikomori 4 hours ago|||
The rest of the world produces more than china. Checkmate.
reducesuffering 5 hours ago|||
Why should should per-capita be most important? If country A keeps their population stable and emissions under control, but country B of the same starting population, keeps doubling their population and doubling their emissions, why should country A have an increasingly declined allowance of emissions when they were more responsible in keeping their total emissions down (by not having as many people)?
Scarblac 5 hours ago|||
Because per capita is the only thing that makes sense.

If China were to split into 10 countries each emitting 10% of what they do now it'd be the exact same emissions, but according to you it would be much better.

Similarly if the EU would become one country, that country would be high up on the list, much higher than member countries now! Oh no!

Looking at per capita emissions is much more fair.

Anyway, China's emissions are falling since last year ( https://www.carbonbrief.org/analysis-chinas-co2-emissions-ha... ). What's the US doing?

chucksta 4 hours ago||
It can't realistically be solved at a per capita level though
renjimen 4 hours ago|||
Individuals can of course make choices to reduce their emissions, Americans more than most since they're starting higher. Buy less new stuff, eat less meat, fly less, etc.

But policy is where real change needs to be made, and the effects of policy still scale with population in most cases.

Scarblac 4 hours ago|||
Maybe we should start trying before we conclude that.
shoxidizer 5 hours ago||||
If country B splits into countries C, D, E and F, all of which emit less than country A, has it found an effective way to reduce emissions? Should all countries adopt the Monaco lifestyle to defeat global warming? I guess if you want to find a fair way to measure administration of land you could emmisions per hectare or rainfall.
layer8 5 hours ago||||
China has a declining population, and had a one-child policy for many years.

Also, you don’t want all the low-population countries to each start contributing as much to global warming as the US.

hiccuphippo 5 hours ago||||
Because some countries pay others to pollute in their stead?
markdown 5 hours ago|||
Because country A just outsourced their emission production to country B.
danny_codes 1 hour ago||||
China is bringing online a stupendous amount of renewables. They’ve blown through their own targets on solar energy deployments. With where batteries are headed I suspect their CO2 emissions will drop much faster than expected. Already they’ve hit peak coal and it’s on the way down
generj 5 hours ago||||
China is rapidly going green.
reducesuffering 5 hours ago||
Is the US even more rapidly going green? https://ourworldindata.org/explorers/co2?hideControls=false&...

China's emissions were 10 billion tons CO2 in 2017 and have increased every single year to 12.29 billion tons CO2 in 2024. Meanwhile, US decreased from 5.22 to 4.9 in the same time

shoxidizer 5 hours ago|||
Both these trends have reversed in 2025.

US emissions icreased by 2.5% https://rhg.com/research/us-greenhouse-gas-emissions-2025/

China's emmisions have decreased by <1% https://e360.yale.edu/digest/china-emissions-decline

michaelmrose 5 hours ago|||
1/4 the population. Per capita we are 65% worse not considering how much of China's pollution is on our behalf
Windchaser 5 hours ago||
Yeah, and don't even get me started on historic emissions.

China has only produced significant CO2/capita in the last decade. The US and Europe are responsible for the accumulated GHG that have gotten us into the current mess. We blew nearly the entire CO2 "budget" for keeping us under 2C of warming, just by ourselves, so it's kinda odd to be pointing fingers at the foreigners who are just now halfway catching up to what we're emitting now.

laffOr 5 hours ago||||
There is no need for ordering right? All countries can start acting at the same time.
smt88 5 hours ago||||
You can't really isolate China's emissions. They manufacture a huge proportion of the goods the rest of the world needs to operate. The green countries are essentially outsourcing their pollution to China.
throwerxyz 2 hours ago|||
[flagged]
legitster 5 hours ago|||
The plan was always to put economic pressure on China to catch up to the rest of the developed world, but we can't exactly tell someone else to stop crapping their pants while we are still crapping our pants.
anonymousiam 1 minute ago||
2030 is just around the corner. China has pledged to cap their CO2 emissions at 2030 levels. If they're trying to meet this goal, it would explain the thousands of new coal-fired plants they're building right now.

https://www.bbc.com/news/articles/cj4y159190go

https://www.carbonbrief.org/chinas-construction-of-new-coal-...

maxglute 4 hours ago|||
Emulate them?

PRC solar power production last year conservatively will diplace ~45 billion barrels of oil, or 10%-20% more than total global consumption per year. It's just retarded eco accounting that attributes emissions to renewable manufacturers while fossil exporters don't get any penalties for extracting emissions.

Every year of PRC solar prevents doubling of oil, basically they're like the only significant country whose net contribution is negative for how much carbon sinks they manufacture. So the answer for US+co is obviously stop exporting oil and lng, and start exporting renewables.

BigTTYGothGF 5 hours ago|||
The same China that, added more new solar capacity in 2024 than the US currently has total? And is currently at 36% of its total energy use from renewable sources compared to the US's 23%? And has ~32GW of nuclear plants in construction compared to the US's 2.5GW?

I hope we steal their playbook.

dyauspitr 5 hours ago|||
China is going to be fully green in a decade or two. India in 3 or 4.
idiotsecant 5 hours ago||
Nothing? China is solving the problem on their own. They already make substantially less carbon per person that most of the west. If we want to be like China it's a simple proposition: be OK with Manhattan project level investments in power transmission from places that have lots of renewables to places that need renewables.
rayiner 5 hours ago||
Climate is determined by total CO2 output, not per capita.

That’s a real problem, because China, and all the poor countries in Asia and Africa aren’t going to stop increasing their CO2 output per capita until they reach western standards of living.

Windchaser 5 hours ago|||
Sounds like we should pioneer better low-emissions tech, then, and pass it along to them. We've got more expendable income and a better tech base from which to do that.
danny_codes 1 hour ago||||
Except that they will stop. China has already stopped, because they’re bringing up renewables for new capacity. In 5, max 10 years it will be ludicrous to spin up a fossil fuel power plant. Solar power is already cheaper than coal and prices are dropping like a stone as China ramps production capacity / techniques/ process.
throwerxyz 2 hours ago|||
[flagged]
dang 12 minutes ago|||
We've banned this account for breaking the site guidelines. Please don't create accounts to break HN's rules with.

https://news.ycombinator.com/newsguidelines.html

rayiner 45 minutes ago|||
Unfortunately, I can imagine the ignorant Americans who don’t realize that all those poor people want SUVs too. You know who doesn’t talk about climate change? Anybody in my family in Bangladesh. They want to live like Americans.
Havoc 6 hours ago||
Can’t wait for trump and his gestapo to deport the entirety of nasa for telling the truth
declan_roberts 5 hours ago|
Why does NASA even have to do this? Build some cool rockets and get us to mars.
Windchaser 5 hours ago|||
Among other objectives, NASA's 1958 mission statement includes conducting aeronautical and space activities of the US for "the expansion of human knowledge of phenomena in the atmosphere and space".

So: atmospheric climate science directly falls under NASA's responsibilities.

https://en.wikipedia.org/wiki/National_Aeronautics_and_Space...

Fourier864 29 minutes ago||||
Almost everything? Most money for fundamental atmospheric research flows through NASA. People always forget that only half of NASA's budget is for rocketry and human space flight, and the other half is science.
retrac 5 hours ago||||
NASA launches and operates Earth-observing satellites for measuring the weather and climate.
SoftTalker 5 hours ago|||
Living on Mars long-term is a practical impossibility. Certainly much, much harder than living on even a climate-changed Earth.
charcircuit 5 hours ago|||
Humans have done a lot of things we once thought were impossible.
k33n 2 hours ago|||
I’ve been living on a climate-changed earth for my entire life and it’s not been too difficult.
0ckpuppet 5 hours ago|
we don't need evidence Earth is warming, because it's happened before humanity, and it will happen after we're gone. We need evidence that we're poisoning ourselves and the planet. Global warming's only accomplishment is giving the poisoners a pass when it was debunked. Private jets and climate change, choose one.
softwaredoug 5 hours ago||
They predicted a warming planet based on human activity as long ago as the 50s

We’ve known about the mechanisms of CO2 leading to atmospheric warming since the 19th century.

We know humans are adding CO2 to the atmosphere.

We observe higher CO2 and warmer temps

The evidence isn’t that complicated.

Windchaser 4 hours ago|||
I know you're getting dogpiled, but global warming has been validated, not debunked.

The science behind it really got going in the 1890s, with Arrhenius' paper predicting climate sensitivity to CO2. That was bounced back and forth with rebuttals and counter-rebuttals until about 1950. Major debate points were how much role water vapor played, how this varied with temperature/altitude/pressure. (You can trace each part of the argument if you're so inclined; there's lots of neat science in there. The concept of "pressure broadening" was my favorite; it explores how spectral bands change with pressure).

Around 1950, the science started settling out. Spectrometers had improved, we had clearer view that CO2 and H2O don't fully overlap in their spectra bands through the atmosphere, and we had the computing to do better calculations. By the 1970s, we were getting ice core data showing that the world had gone through huge temperature swings, and how this changed with CO2. Enough data had accumulated that a consensus was forming. In the 1980s, scientists were now concerned enough to form a large body to inform policymakers on this issue (IPCC; 1988). And in the 40 years since then, we've mostly sat on our hands, even as the science just gets clearer and clearer.

I share all this long history to explain that the science went through nearly a century of rigorous debate even before politicians got involved. This a scientific issue, not a political one. And I'm glossing over 99.9999% of the detail here. There was an extensive literature debate between the scientists, hashing out any point you can think of. You just have to go to your local uni library and start reading.

TL;DR: saying that global warming is debunked is about as incorrect as saying that the Earth is flat. We have extensive evidence showing otherwise.

mempko 5 hours ago|||
I'm pretty sure global warming isn't debunked. Yes, we should worry about all the other pollution too. But global warming is happening and we are causing it. What's different than nature doing it is the rate of change. Yes the earth was warmer in the past and would be in the future, but it has never warmed as fast as it is now.
danny_codes 1 hour ago||
No need to troll here, HN crowd can read so it’s not going to be effective.

You are welcome to read.. any paper on the subject and educate yourself.