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Interesting to see an article on this. I was just mentioning to a friend how wild it was that the trees in late February looked like the trees usually look in May.
When I was a kid I assumed that spring started January 1st... since that's when the year started. And then every year I would be like "wow, what an unseasonably cold spring this is." Maybe in a few years my belief as a little kid will actually end up becoming true.
Funnily enough the new year did use to start in spring before the adoption of the Gregorian calendar, so you were almost right, just 300 years too late
Interestingly, I did learn about that later as a kid, which stuck with me for a completely different reason: the new year used to start on my birthday! (March 25th)
New year was moved to january in antiquity, nothing to do with Gregory XIII or his calendar.
Not in England, Wales, Ireland and Britain's American colonies, which all made the change of the new year from March to January in 1752 alongside the switch to the Gregorian calendar.

Scotland made the change in 1600.

We celebrate Spring Festival or Chinese New Year every year around the end of January. I always felt it's weird because it's nothing "spring" about this cold-ass situation.
And that's why the astronomical seasons are bunk, and the meteorological seasons are the way.
There was a hugh cold snap in the South East during December that lasted a week or so. The timing and the duration was unusual. Even some of my garage kept citrus plants started to bloom, usually it would be late winter not early or mid winter.
I've noticed the same phenomenon where I live in Patagonia. Two weeks ago, my wife noticed that some trees were changing their leaf colors earlier than usual, which isn't too surprising. But then we noticed that wild apple trees and berries were also producing fruits about a month earlier than expected. I joked saying autumn is arriving earlier this year now I'm a bit worried about the whole situation
I don't know what would cause a tree to sprout leaves earlier in the spring. And I don't know if the article explains that because of the paywall. Maybe it has to do with temperature?

As far as shedding leaves earlier in the fall, I heard they determine that based on when they've collected enough CO2. The more CO2 in the atmosphere, the less time it takes the trees to meet their goals.

For most plants, it’s average temperature for a period of time.
I've always been interested in the effect of air traffic on weather. Contrails can initiate cloud formation. With the war in Europe causing changes in routes I wonder if that's having an effect on northern hemisphere weather patterns on a large scale.
Is that why Chicago winters are perpetually gray?
No idea. Michigan is more gray than Wisconsin because the air picks up moisture as it crosses lake Michigan. The western parts get a lot of lake effect snow too. Chicago I have no idea. How does it compare to Milwaukee?
Chicago probably gets more lake effect cloud cover. You're right that it's always gray downtown in the winter.

Further out where I live it's not perpetually gray, it's more of a mixed bag. Currently clear skies.

The only constant is change.
I say this to my kids while I keep consuming the same as "the rest" does
Since 2016 at this point I am never going to be surprised if there is ever a big reveal some kind of horrible toxic pollution has been going on nationwide for years and at this point is never going to stop.

Non-stop fracking burnoff is bad enough, it makes people ill dozens of miles away enough to put some in the hospital but we have allowed industrial toxic zones right among populated areas, schools, etc.

https://www.propublica.org/series/sacrifice-zones

I suspect it was the combination of that sub zero cold snap followed by unseasonably warm temperatures.

I once read that some estimates indicate we're already more than a quarter through the expected climate change, which makes all of these extreme weather effects make sense.

Daffodils on our block here in Brooklyn started coming up around the last week of February, which felt like three weeks or so too soon.

This was definitely the mildest winter I've experienced in my life. And if I'm remembering correctly, NYC was reclassified as a "humid, subtropical" climate zone a few years ago. Looking forward to the future palm trees on the east river. /s

For anyone not in Brooklyn this morning, it is snowing here right now.
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And it's over 40 in Providence.

I'm having trouble reading your comment as anything other than misleading about how warm this winter has been.

New England is also having one of its warmest winters on record, and the trend over the last 40 years has been consistent warming.
It's raining in Boston. Although points west and north are getting a lot of heavy, wet snow.

I'd need to look up the numbers but I felt like while we didn't get much snow at all that we got a *lot* of rain. There were a number of rainstorms where if it'd been rain we'd have been pounded. And when it did snow, not much stuck and/or it melted away in a couple of days. This isn't the only year I can remember that, but it's at least unusual.

> For anyone not in Brooklyn this morning, it is snowing here right now.

Weather ≠ climate.

Just ask California over the last little while.

In fact it may snow more often as the climate warms a bit in some regions: as warmer air holds more moisture. Then when it slams into a cold front it sheds that moisture, and with climate change destabilizing the jet stream ("polar vortex") the cold Arctic air may jut farther down hitting the warm-moist air that comes up from the south.

> the mildest winter I've experienced in my life

As the joke goes: The mildest winter of your life so far

Here in SF we’re having what is definitely the hardest winter I’ve seen in my 8 years here. Can’t remember the last time SF had so much weather. Even thunderstorms! Multiple!

I believe a lot of the reason for the mild winter on the east coast and wet cold winter on the west is because of La Nina, which apparently just ended a few days ago after about a year of being here.
I've lived through several la nina cycles but only one midwest winter without snow.
I've lived here nearly half a decade. We had thunder and lightening storms when I was a kid, then almost none for the last decade or two. This years' storms are heavy but not out of line w/ my personal experience, for what that's worth. ;)
Mammoth mountain is on track to have a record breaking year of snow fall.

In San Diego its basically sf weather this winter. Highs are rarely above 60, lows even in the high 30s, the water is mid 50s,and it seems to be rain like once a week.

> This was definitely the mildest winter I've experienced in my life.

In Buffalo it's been a really weird winter—mostly unusually mild, punctuated by a few very severe events (giant snowstorm in November, 2-day blizzard in December, ice storm in February) but returning to mild shortly after. Honestly this past week or so is the first time it's felt like a normal winter.

Same here in Virginia. This is exactly how I'd describe it. From what I understand, it's caused by the increasing energy in the Earth's climatic system leading the jet stream to bound further north and further south than typical, causing extremely warm tropical air to make it strangely far north in the summer (2021 Seattle heatwave) and for extremely cold arctic air to make it strangely far south in the winter (2022 DC it got down to subzero Fahrenheit, coldest I've felt in my life)
My anecdotal experience over the last 15 years or so in the Northeast suggests that this has been the trend, along with summer ending later and starting later.
I'm right outside Philly, and this is definitely the mildest winter I can ever remember. It's only snowed enough once that we had to even get the plows and shovels out, and that melted right off like the next day. Other than a few snow flurries here and there, it's been exceptionally mild.
Time to watch Carl Sagan, almost 50 years ago, explain how our coal usage would be a big problem:

https://youtu.be/Wp-WiNXH6hI

A slow train wreck that was avoidable.

> A slow train wreck that was avoidable.

Avoidable? Yes, but for which price? Our economy, and thus wellbeing, depend on having huge quantities of cheap energy available.

You think pollution is bad? Ask the hundreds of million of people who chose to move from the pristine country to a polluted city along the last centuries!

Pollution is bad, but lack of energy is worse. When our technology will let us stop polluting without giving up comfort, that will be the right time to stop polluting.

> Avoidable? Yes, but for which price? Our economy, and thus wellbeing, depend on having huge quantities of cheap energy available.

The world may gain an estimated $78 trillion over coming decades by making this energy transition.

https://www.imf.org/en/Blogs/Articles/2022/06/08/how-replaci...

Sure, now it may. But 50 years ago? No way!
Yes, nothing to be gained if we’d switched anytime sooner in the last 50 years. Very smart observation. Apart from a liveable planet.
I think the point is that the tech wasn't ready yet 50 years ago
It takes no technology to consume less.
> When our technology will let us stop polluting without giving up comfort, that will be the right time to stop polluting.

Technology has reached this point a long time ago. Politics have not.

> Technology has reached this point a long time ago.

Your sources and mine must differ. As far as I know, renewable energy sources cannot yet guarantee a steady energy flow, to source big industry, when it's cloudy and not windy for a week.

I hope we'll get there soon, I really hope.

Energy is life. But we've had commercial nuclear for over half a century. We as a society just chose to pollute instead of dealing with the real / not real risks associated with nuclear.
On this point, I agree with you. We were too scared to talk rationally about nuclear, and we chose to burn coal instead.
Rational discourse about nuclear energy might eventually have to come around to the fact that all the states want to store their waste in one state which least needs nuclear energy. And that storage facility... yeah, it caught fire a few years back.
> Avoidable? Yes, but for which price? Our economy, and thus wellbeing, depend on having huge quantities of cheap energy available.

We've deliberately made choices to not prioritize better sources of that cheap energy over the years. https://www.scientificamerican.com/article/carter-white-hous...

"By 1986, the Reagan administration had gutted the research and development budgets for renewable energy at the then-fledgling U.S. Department of Energy (DoE) and eliminated tax breaks for the deployment of wind turbines and solar technologies—recommitting the nation to reliance on cheap but polluting fossil fuels, often from foreign suppliers. 'The Department of Energy has a multibillion-dollar budget, in excess of $10 billion,' Reagan said during an election debate with Carter, justifying his opposition to the latter's energy policies. 'It hasn't produced a quart of oil or a lump of coal or anything else in the line of energy.'"

> You think pollution is bad? Ask the hundreds of million of people who chose to move from the pristine country to a polluted city along the last centuries!

This was not because they loved pollution, but because the other options were also bad. Ask people who live in LA if they preferred the smog from the 1970s, or the people of Cleveland if they prefered the burning river.

> Ask people who live in LA if they preferred the smog from the 1970s, or the people of Cleveland if they prefered the burning river.

If I ask the people who lost their manufacturing job to China, what do you expect as an average answer?

I suspect they'd correctly identify the respective cost of labor as the key reason.

No amount of polluting LA is gonna make American labor cheaper than China's.

America's new slogan should be "Reagan made everything worse"
This basically was a slogan in my house when I was growing up.

I think the only thing wrong with it is that it puts too much blame on Reagan and not enough blame on the powerful interests he was working for.

> America's new slogan should be "Reagan made everything worse"

IIRC, the Democrats controlled Congress throughout the 1980s, so it's not like he could have done it without 'collaborators'.

About 1-2% of GDP each year could have cut global warming in half over the last 50 years.

That’s a monumental amount of resources but wouldn’t have had a particularly noticeable lifestyle impact. We would likely have had more nuclear accidents, but those are really local events.

The path was basically eliminating coal, home heating oil, plus drastically reducing oil use by adding in road electrical power delivery for cars. The specific implementation would have depended on massive R&D plus either carbon taxes/banning coal, or larger nuclear subsidies.

> About 1-2% of GDP

In economic terms, 1-2% of GDP is the difference between a year worth celebrating and a shitty one.

OK, I exaggerated a bit, but it is absolutely not negligible over a couple of years, and a catastrophe over 50 years.

You lose 1% GDP not 1% GDP growth rate per year.

Basically you get one bad year, and every year after that you don’t notice the difference. Much like how our military spending is a lot of money but you only notice when it changes. The economy might even be larger today if we had gone down that path because of increased efficiency and cleaner air.

Your argument is this: "Rather than give up 2% of our income, we should condemn all our descendants for the rest of time to a blighted ecosystem."

> a catastrophe over 50 years.

It is a palpable obscenity for you to use the word "catastrophe" to refer to a 2% decrease in the GDP but not for the complete devastation of our biosphere.

I heard a theory once that only a certain number of human souls were ever created, and after that, a lot of people got born with partial souls or no souls at all.

I found it charming but unconvincing, but sometimes I wonder...

> When our technology will let us stop polluting without giving up comfort

Given we have entire industries devoted to providing us constantly new levels of comfort without considering energy consumption that's a goal that can't be reached.

Climate change is going to involve the involuntary giving up a lot of comfort for a lot of people.
Yes, giving up coal generated electricity for anything else for the past half century would have been difficult? Now we go around asking people not to eat meat, fly, etc.

Pay now, pay later usually works out to be more painful when addressed later.

At some point it's going to beyond anyone "asking" people to do anything. It already is, for some people. Nobody is "asking" you to become a refugee when the place you lived is underwater, or has too much wet-bulb temp for human life; nobody "asks" anyone to starve when they don't have enough food. Pretty uncomfortable things that will occur to people who did not volunteer for it.

The "asking" to give up comfort is an attempt to avoid the later worse consequences that will not be voluntary.

How do you balance other factors? How many people area allowed into this convenience and comfort? This goes directly into how many people the world can comfortably support.
"Our economy, and thus wellbeing," there is a lot of glib oversimplification here. I'm into my middle age now and I can say pretty confidently that the only real technology I think is indispensable and worth the energy we use on it is in food production and in medicine and if there were some way to actually restrict population growth, maintaining the high (frankly unsustainable) level of food production wouldn't be a big priority.

I generally believe that on a day to day basis medieval peasants were about as happy as your average person now (perhaps more so). I'd probably trade places with one if I could still get access to the medicine which ensures that my kids don't die in childhood.

My point isn't to say that modern technology is bad or doesn't provide value but that "the economy" as a single entity is almost pointless to try and evaluate with respect to a problem like climate change. It is not all or nothing. It never has been. The complexity of our lives and our happiness and flourishing doesn't come down to a glib one to one identification with the current economic order. We can and must (and should have been) thinking and speaking about this issue with more nuance.

The economy has become the state religion of the United States.
> Yes, but for what price?

How can you be this short sighted. How is a dead world in exchange for a few decades of obscene comfort worth while in the slightest?

How can someone honestly say "what about the economy!" when we will be seeing droughts, storms, heatwaves, etc that will cripple said precious economy while sending the quality of life down the gutter?

Was all the plastic treats worth it? Were the wars waged all over the world worth it for the "economy"? Sure you got to structure your entire society around little moving couches and lived in absolute comfort while the lowest were ground down by your little economy.

We have optimized out all that makes us Human for the sake of this god damn ponzie scheme. We outsource child care to afford dignity, outsource art to computers so we can sell trinkets for our bosses more efficiently. We built walled gardens on every block, destroying any kind of commons for shared experience so that each and every person has to buy into silly little monetization devices to even get to know others in their community.

Absolutely inhuman.

Some people do actually seem to be that shortsighted. looking at peoples life and financial decisions, sometimes I get the sense that people have a hard time planning more than five years ahead, let alone for the next generation. that, and people have a strong tendency to engage in wishful thinking and generally underestimating the probability of unpleasant outcomes that could result from their own actions.
The economy is not even real. In theory humans could live in a perfect 1:1 birth to death ratio instead of this infinite growth. The whole economy is one big pyramid scheme that is going to catch up to us some day.
people don't choose to move from rural areas. they're forced due to mechanization making their labor obsolete so they can't farm anymore. it's an economic necessity to relocate to a city.

other factors play into that too, like drought. but largely in the 20th america everybody migrated away from rural areas because of machines.

> What price? Our economy,

You appear to be arguing that it is too expensive to save the biosphere from destruction. I'm curious what sort of value you think money will have in a ruined ecosystem.

> When our technology will let us stop polluting without giving up comfort,

On one side you have a livable planet for our descendants; on the other, your own personal comfort; and you pick the second.

Humans really horrify me.

It's the constant capitalistic brainwashing we get from the media telling us how important how economy is while focusing on tiny short term gains
This is what I really hate about the people who say "Well, we just didn't know back then" or "We didn't have the evidence we do now" or, the worst one of the lot "They didn't do enough to convince me".

We knew. The evidence was there. And excuse me princess, if you think it's our job to personally persuade you to the correct position, how about you save all of us some time and just don't opine on a goddamn thing. Because if you're not willing to put in the relatively easy work of looking at the available data, you clearly aren't ready for the much harder work of correcting the issue.

I'd even accept, "Well, I was lied to and I fell for those lies." But I've not seen one person go that route. Probably because the entities that lied to them then are still around them today. If you were also a member of certain think tanks, finding out that they were perpetuating lies, kind of calls into question everything about them. Including your perceived status as a thought leader. So the institute can be wrong, but it can't be deceptive. And if the institute is wrong, it's really the fault of everyone else for not doing a good enough job of being logical and rational.

Who are you talking to? It sounds like your raving against a perceived "thought leader" that does not exist in this comment thread.
I was agreeing with the person I was responding to and also commenting on a trend I see in certain individuals at large. Not specific to anyone here in this thread.

Take for example Penn Jillette. He was a fellow at the Cato Institute. One of their big positions is that climate change is not a thing. As of 2008, he was espousing the position of the institute, that there was not enough information on it. Today, he says that it's pretty clear that it is now happening, but back then, they didn't have enough evidence and didn't do a good enough job of convincing people like him.

But he has to convince himself of that because otherwise, the Cato Institute used him, not for his ideas, but simply because he has influence.

Nobody wants to admit to being essentially a real-life Captain Planet villain, robbing future generations in service of individual greed.
It's just a general rant towards climate-change-apathetic people
As a kid in the 80's I could clearly see the handwriting on the wall, and it was pretty disheartening to see nearly all the grownups put their heads in the sand. Environmentalists have been derided as silly hippies for decades. So yeah, it can be a little galling when the same people who wouldn't listen back then suddenly switch to "getting it" w/o going through some sort of i don't know? Contrition? Apology? But then, who cares? It's not like their personal growth is intrinsic to saving the Earth? Anyway, I try to look on the bright side: at least they're getting it now, eh? The important thing is to stop destroying the environment.
The problem is that "now" is something like 10 or 20 years too late.

It's times like these that I come to understand the revenge violence against the previous establishment that tends to occurs during popular revolutions.

That might be because we're currently part of the control group* in the aerosol geoengineering experiment. https://twitter.com/LeonSimons8/status/1633566568528375811

* not controlled for GHGs

More like the control group for ending ending an aerosol geoengineering experiment.
I was very aware of the new rules on sulfur as I had been working as a consultant for the very same engineering firms that actually run the sulfur capture units.

I'm also very interested in climate change.

I can't believe I didn't put the two together. Wow. You've made a very interesting connection.

I asked chatgpt how common false springs are in the U.S.

> False springs are not uncommon in the United States, and their frequency and severity can vary depending on the region and weather patterns. In general, false springs are more common in areas with a continental climate, where there can be large temperature fluctuations in the spring.

According to a study by the USA National Phenology Network, false springs occur on average once every three years in the United States, with the highest frequency in the Midwest and the lowest in the southern and western regions. However, the frequency of false springs can vary greatly from year to year, and some regions may experience multiple false springs in a single season.

False springs can have significant impacts on agriculture, particularly on fruit crops such as peaches, cherries, and apples, which are vulnerable to frost damage during early growth stages. In recent years, false springs have become more frequent and severe due to climate change, leading to increased risks for farmers and gardeners who rely on healthy plants for their livelihoods.

It’s sad to see you downvoted and yet your comment is completely on target. Not every situation is about “climate change”, but unfortunately this is too common when you go against the mob narrative.
It's probably because of the use of ChatGPT without actually fact-checking anything it wrote.
For the sake of the conversation:

Me: provide references.

> Schwartz, M. D., Ault, T. R., & Betancourt, J. L. (2013). Spring onset variations and trends in the continental USA: past and regional assessment using temperature-based indices. International Journal of Climatology, 33(12), 2917-2922.

Ault, T. R., Henebry, G. M., & De Beurs, K. M. (2015). False spring climatology in the contiguous United States. Environmental Research Letters, 10(4), 044022.

National Phenology Network. (2019). First Leaf and First Bloom Maps. Retrieved from https://www.usanpn.org/data/spring

Harrington, C. A., Gould, P. J., St. Clair, J. B., & Carlson, M. R. (2010). Modeling the effects of winter environment on dormancy release of Douglas-fir. Forest Ecology and Management, 259(3), 798-808.

Those are sources, but there's still no evidence that the sources are real (the first one seems to be, from a quick google, but still), that the source actually supports what ChatGPT is saying, or that ChatGPT understood the source correctly.

Using ChaptGPT for research is interesting, and I think it's a cool way to learn new things. But I think if someone is going to share that information with someone else, it's appropriate to manually find and cite creditable sources, at least sufficiently enough that the ChatGPT aspect becomes irrelevant in a way other than discoverability.

I use ChatGPT to quickly learn a new subject, and it hallucinates about half the sources it cites. It will often make up a paper title that is a mashup of two or more papers. It usually gets the researchers in a field correct, so it does provide enough for one to start doing their own research and it does usually point one to the good survey papers on a topic.

At least the https://www.usanpn.org/usa-national-phenology-network exists!

>but there's still no evidence that the sources are real

Sounds like it's successfully approximating a human (I wish I was joking).

The current "state of the art" for human commenters who are acting in bad faith is to google their position and cite articles and papers that don't even support their claims knowing full well that people will have to waste time reading your BS sources to disprove you and that even if they do you've still one because you've got them to stop arguing against your position and instead argue against your sources. These miscreants are often successful in using their false appeals to authority to convert people to their side.

Of course ChatGPT doesn't know what "bad faith" is but regardless it's almost performing on their level.

We are marching toward a world where dishonest spinsters and BSers pretending to be experts are going to be replaced with bots.

A massive increase in noise to a fragile information propagation system society has come to rely on (mostly for ill, it seems).

What could go wrong?

Add that to the context of so many existential issues we need clear communication on (freedoms, the global economy, reformation of society, climate change, Putin and Jinping's last gasps for "legacy"). All the while dodging machine generated hallucinations of off-by-that-much pronouncements on the world around us.

We have a perfect storm brewing.

> Of course ChatGPT doesn't know what "bad faith" is but regardless it's almost performing on their level.

Its trained largely on the public internet. That it reproduces bad faith argument naturally and fluently should not be surprising.

Are those real publications, or were those references procedurally generated, too?
All generated, but sometimes by chance it gets things right
The exact phrase "False spring climatology in the contiguous United States" doesn't show up in Google or Google Scholar, except for this thread.
Interesting: chatgpt says the doi is 10.1088/1748-9326/10/4/044022 which I can’t find either. Idk what the likelihood of it being removed or moved is but I want to know if it’s real now. I emailed the journal. I’ll let you know if they reply.
I use ChatGPT in a research context but I verify everything and always ask it for citations. It regularly spits out DOIs that either either completely fake or point at a totally unrelated paper.

It's just generating them based on learned patterns, nothing more

And here is the evidence for "No, it isn't actually 'thinking' it is 'parroting.'"
No, it’s because those that downvotes are trying to find causation associated with climate change. His comment was indirectly against this narrative, and thus downvoted. HN has always been mob ruled, with the understanding that the farther left your views, the greater “karma” you receive (almost to extremism). 8 years being on here, and this has always been this way.

The person’s comments was suggesting a fluke event. No comments were given to have dialogue with the comment, which only downvoted.

If people wish to create a toxic environment for opposing view points, that is their choice. However, it is toxic none the less.

Not everything is associated with climate change or politics.

Now ask it to provide sources and see how it invents quotations from fake journals out of thin air
Ah, interesting. I asked and posted them in another child comment. I’ve been using chatgpt to do “research” on growing grapes for wine. I’ve many times run into an instance where the response looked wrong and I prompted it for clarification on how it came to a conclusion. The result was it sometimes apologizes and changes the response. There’s definitely a benefit in providing clarity in prompts rather than broad, open ended questions.
It makes up citations at a comical rate of over 90% although I've found that the made up titles make for decent search terms in google scholar
Will you even try to verify if this is bullshit or not?
And then in the PNW we got snow in March. Sometimes (in the valleys at least) we go entire years without any snow. I think everyone else is getting the early Spring at our expense.
The reason for the snow is largely because we're getting more frigid air from high pressure areas on the north end of the Fraser River Valley, which starts in northern Canada and ends just north of Vancouver Island. Every snow event over the past 3 or 4 months has been from Fraser outflow.
And yet the Almond Bloom in California is continuing longer than I ever remember it.
The climate is totally broken. The leaves didn't fall until mid to late November, and we had a pretty warm winter on the panhandle, rarely dipped below 40s-50s, and it's been in the 70s-80s since January (?). And, randomly, this week, the low is in the 40s.. it's just bizzaroworld.