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Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by toomuchtodo on Wednesday July 14, 2021 @01:53PM (#27836032)
Population momentum means population will peak at 11.2 billion people near the end of the century [1] before it declines. Total fertility rate drop isn't happening fast enough (need to get closer to 1 vs 2.1 replacement rate), and we've already locked in the expansion to 11.2 billion. 3 billion people can't afford to get enough nutrition [2]. That number will increase before it decreases.

Consider we're already on the path to exceed our carbon budget [3], and billions of people are trying to climb out of poverty (which requires fossil fuels, resources, and food production, which we are already managing....poorly and unsustainably). Many countries still offer funds to people to have children and have pro-natalist policies (to goose economic policy and pay for elderly entitlements and stave off the economic contraction). We're not just headed off the cliff; we're pushing our foot on the gas.

TLDR Those who consume the most will need to consume less, and even then there is likely not enough to go around for first world standards for all.

[1] https://ourworldindata.org/future-population-growth

[2] https://ourworldindata.org/diet-affordability

[3] https://www.carbonbrief.org/analysis-how-much-carbon-budget-...

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by ashtonkem on Wednesday July 14, 2021 @02:00PM (#27836122)
Yes, there is work to be done. But I really really dislike the overpopulation and “tough decisions” narrative because:

1) It places the onus and blame on the people that are currently not the problem.

2) It implies that we must force people to have fewer kids, when evidence shows that women universally want to have fewer kids given the choice. We don’t need to coerce them, we need to help them.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by toomuchtodo on Wednesday July 14, 2021 @02:01PM (#27836145)
Physical systems don't really care how distasteful ideas are. I don't mean to be rude, at all, but facts are life isn't fair. Climate systems don't sit around arguing over the equitability of development rights based on who emitted carbon when.

Rich countries burned fossil fuels for 100+ years to develop. Does anyone think those countries are going to revert to much lower standards (somewhere between European and developing country standards) to give that same advantage to developing countries? Absolutely not.

EDIT: I want to be very clear before my edit window expires; I do not believe anyone should be forced not to have kids (although I would be onboard paying folks who choose not to have kids a direct transfer payment, just as it's not taboo to pay people to have kids and many governments do it). But I also believe no one should have one or many kids if their socioeconomic circumstances don't allow for it. We should absolutely strive to empower and educate women, as you mention this causes a natural decline in fertility rates [1].

[1] https://ourworldindata.org/fertility-rate#empowerment-of-wom...

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by ashtonkem on Wednesday July 14, 2021 @02:07PM (#27836238)
> I don't mean to be rude, at all, but facts are life isn't fair. Climate systems don't sit around arguing over the equitability of development rights based on who emitted carbon when.

I’ll put it simpler: you are completely wrong about what needs to be done and by whom.

Accidentally or not, you are repeating the narrative of eugenicists who are obsessed with over population in the global south, rather than the actual facts on the ground. We need to focus on de-carbonizing our industry, rather than the reproduction rate of those who currently consume the fewest resources per capita.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by toomuchtodo on Wednesday July 14, 2021 @02:15PM (#27836372)
I argue helping people live better lives through education, robust family planning options and availability, and direct cash payments is not eugenics, but feel free to call me whatever you'd like. I'm comfortable with my position based on a foundation of empathy and pragmatism. I believe all human beings should be treated with dignity and respect.
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by ashtonkem on Wednesday July 14, 2021 @02:23PM (#27836474)
I’m not calling you a eugenicist, I am worried you’re accidentally repeating their points. We absolutely can and should do what we can to help the global south, but focusing on over population as a source of our ills is a eugenicist talking point.

The problem is, and always has been our dependence on fossil fuels to increase our standard of living. Solve that, and the difference between 7-10billion humans is moot

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by Method-X on Wednesday July 14, 2021 @03:08PM (#27837064)
This is probably not a popular opinion here, but I'm actually quite optimistic on our transition from fossil fuels to renewables. Things have been progressing nicely and I expect that progress to dramatically accelerate over the next 15 years.
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by ashtonkem on Wednesday July 14, 2021 @06:03PM (#27838988)
I’m actually feeling pretty optimistic too. The fact that my house is currently a net exporter of green energy is certainly helping my mood in this area.
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by Method-X on Wednesday July 14, 2021 @03:01PM (#27836972)
Just want to say I appreciate the discussion you two are having. Excellent points from the both of you. And it's nice to see a civilized discussion for once.
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by blooalien on Thursday July 15, 2021 @07:30AM (#27843546)
> … "it's nice to see a civilized discussion for once."

I've seen far more of that here than just about anywhere else on the Web where news is discussed. I appreciate it greatly, and the world needs more of it for sure.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by fsloth on Wednesday July 14, 2021 @02:12PM (#27836316)
"But I also believe no one should have one or many kids if their economic circumstances don't allow for it."

In EU area you can have as many children you like and the social safety nets will generally carry you trough caring for your child.

I suggest you use some other means of argumentation than wealth of parents, as that is a non-issue here (mostly).

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by ashtonkem on Wednesday July 14, 2021 @02:28PM (#27836559)
Europe is also well below its replacement rate at ~1.5 children per woman.
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by giantg2 on Wednesday July 14, 2021 @02:11PM (#27836300)
"It places the onus and blame on the people that are currently not the problem."

This isn't necessarily true. There are many families in developed countries that have more than 2 kids. If you limit families to 2 kids then you could see the fertility rate drop lower (ideally fertility and immigration growth together would be under the replacement rate in developed countries).

"It implies that we must force people to have fewer kids, when evidence shows that women universally want to have fewer kids given the choice. We don’t need to coerce them, we need to help them."

This is generally true, but ignores outliers and the association with other factors. You generally only see the decline in fertility rate in areas that have lower infant mortality, which is also usually associated with a more modern lifestyle and economic conditions. You still have a subset of women in developed countries having a ton of kids for other reasons, like they want a big family, or religious things like the Hassidic community.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by garden_hermit on Wednesday July 14, 2021 @02:36PM (#27836656)
Whats wrong with some people having many kids, if the average still remains low?
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by giantg2 on Wednesday July 14, 2021 @02:42PM (#27836729)
If the average is low enough, then nothing. If the goal is to reduce consumption in high consumption developed countries, then you need it to drop low enough that the total population growth is at or below replacement (like birth rate + immigration).
Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by Quinner on Wednesday July 14, 2021 @02:21PM (#27836436)
While its possible that climate change may slow or reverse this trend, the number of people globally experiencing malnutrition has actually been falling over time.

https://ourworldindata.org/grapher/share-undernourished-regi...

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by toomuchtodo on Wednesday July 14, 2021 @02:23PM (#27836485)
All data indicates that climate change will diminish crop yields [1] and ocean life harvests [2] [3] [4]. If there is data to the contrary, I am open to consuming it to update my mental model.

> Researchers combined a global dataset of field warming experiments conducted at 48 sites to estimate decreased yields of 7.1 percent for maize, 5.6 percent for rice, 10.6 percent for soybean and 2.9 percent for wheat. Their estimates were 95 percent probable for the first three staples and 89 percent for wheat.

> In response, “technological and adaptive measures, such as northern expansion of the croplands, will thus have to increase yield by 1.8–2.0 percent per year to meet the conservative estimates of a 70 percent increase in food demand,” the researchers wrote.

> However, that required rate is higher than the historical yield increases in the late 20th century, “which is both challenging and alarming, considering the stagnating yield increases widely observed for the past decade,” they concluded.

[1] https://allianceforscience.cornell.edu/blog/2020/11/global-c...

[2] https://www.nytimes.com/2019/11/29/climate/climate-change-oc... (Warming Waters, Moving Fish: How Climate Change Is Reshaping Iceland)

[3] https://www.nytimes.com/2019/02/28/climate/fish-climate-chan... (The World Is Losing Fish to Eat as Oceans Warm, Study Finds)

> If current population trends continue at the same rate, the world will need to double its food production by 2050. To compensate, world leaders are consistently looking toward fisheries to be a critical source of protein for millions of people.

> In 2016, 171 million tons of fish were taken from the sea, and that number is expected to rise to 201 million over the next 10 years.

(my note: I have serious doubts this is sustainable)

[4] https://www.nationalgeographic.com/environment/article/clima... (Climate change is depleting our essential fisheries)

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by ben_w on Wednesday July 14, 2021 @02:48PM (#27836807)
Regarding carbon, while it is possible we’ve already exceeded our budget on the pessimistic end, on the optimistic end (that we have 15 years), the current growth of PV alone is enough to for me expect it will turn out… well, ‘fine’ isn’t the right word but “not catastrophic” at the least.

Phosphorus, biodiversity, stuff like that? Still a concern.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by mschuster91 on Wednesday July 14, 2021 @02:18PM (#27836395)
> 3 billion people can't afford to get enough nutrition

Depending on the country, 1/3rd to 1/2 of all produced food goes to waste - and a lot of that is due to customers expecting that every supermarket has to have their particular brand of generic, short shelf-life goods (e.g. yogurt, salads and other vegetables, baked goods) on stock 24/7 and similar absurdities. And any suggestion to curb that shit, either by limiting the amount of different brands available in stores or to limit the time slots in which customers can expect fresh goods, gets quickly shot down by outrage mobs fearing the advent of socialism (which is associated with empty shelves).

As for the "can't afford" part: we need to get global wealth disparity under control, and especially us Europeans and Americans have to stop killing African textile and food industry by "donating" our excesses.

> Many countries still offer funds to people to have children and have pro-natalist policies

Anti-natalist politics are by definition always walking on the cliff of eugenics. Any attempt of restricting who is allowed to reproduce or how much will always lead into selection questions - China for example now suffers from a vast lack of women, as parents aborted or murdered female newborns, and I don't want to get started with the horrors that the Nazi regime committed.

The best and especially humane solution to curb overpopulation is to reduce poverty and increase healthcare - it has been shown that once people from a population get lifted in wealth so they don't need to have ten kids to have three survive to adulthood and one to take over their care in old age, child birth rate automatically drops!

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by giantg2 on Wednesday July 14, 2021 @02:37PM (#27836666)
"The best and especially humane solution to curb overpopulation is to reduce poverty and increase healthcare - it has been shown that once people from a population get lifted in wealth so they don't need to have ten kids to have three survive to adulthood and one to take over their care in old age, child birth rate automatically drops!"

... and per capita consumption of resources increase, usually creating a large net increase in resource consumption based in the modern lifestyle.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by blooalien on Thursday July 15, 2021 @07:46AM (#27843644)
> "… and per capita consumption of resources increase, usually creating a large net increase in resource consumption based in the modern lifestyle."

Exactly why such a complex issue cannot be solved with one or two simple solutions as so many seem to think. We need to reduce consumption and abuse of limited resources and normalize such behavior in the minds of human society as a whole. Especially among those most actively doing said abusing and (wasteful) consuming. We also need to be more open to the idea of change, because change is coming whether we like it or not. There's a terrifyingly large portion of humans in decision-making positions on this planet who are fighting tooth-and-nail to maintain an unsustainable "growth oriented" status-quo.

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by giantg2 on Friday July 16, 2021 @10:48AM (#27856791)
"There's a terrifyingly large portion of humans in decision-making positions on this planet who are fighting tooth-and-nail to maintain an unsustainable "growth oriented" status-quo."

That's because our economies would collapse. Most of the population don't want the restrictions that would be necessary. So how do we change societal and individual views to give up the freedoms and resources that we have been enjoying?

Re:MIT Predicted Society Will Collapse in 2040. Research Sho... by jdashg on Wednesday July 14, 2021 @02:12PM (#27836313)
The nutrition problem is a social problem, not a technical problem.