18 votes

What are ethical ways to curb the global human population increase?

Education, education, education. Also healthcare, and access to contraception. I don't have any references available, I'm afraid, but repeatedly we have seen that when standards of education are ...
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12 votes
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How much is the world population expected to grow in the next decades?

Currently we have over 7.7 billion people in the world (data from April 2019). In 2010 the UN made several projections for world population growth. World population estimates from 1800 to 2100, ...
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8 votes
Accepted

What are ethical ways to curb the global human population increase?

It may sound contradictory, but according to scientist and statistician Hans Rosling, the main criterion to limit population growth is a reduction of the child mortality rate (see also his Ted Talk on ...
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5 votes

Is global population growth ignored in sustainable energy discussions because it makes any effort seem futile?

A few trends which help explain why population growth may not receive significant attention as part of climate change discussions (all charts from Our World in Data): Per capita emissions rise with ...
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5 votes

How did the people living on Easter Island go extinct?

They didn't. The (much reduced) population is still there. They went through a very bad time with wars and starvation, and records of the time were lost with the last people who could read the writing ...
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  • 1,807
4 votes

Which global fertility rate would allow the human population to adjust to Earth's carrying capacity while maintaining an acceptable dependency ratio?

I think this is question is difficult to answer for several reasons: There is no agreed upon carrying capacity of the Earth. The Global Footprint Network organization does a nice job estimating the ...
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4 votes

Is global population growth ignored in sustainable energy discussions because it makes any effort seem futile?

Though it does not make the situation easier, population is not the elephant in the room when it comes to CO2 emissions: we might afford 10 billion with low lifestyles, but the habits of the less than ...
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4 votes

What are ethical ways to curb the global human population increase?

Increase broadcast coverage of television soap operas From the abstract of a research paper titled "Soap Operas and Fertility: Evidence from Brazil" (pdf): We estimate the effect of television on ...
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3 votes

Is there a scientific consensus whether lifestyle or amount of human population the biggest problem

There are a couple of errors in your question. Firstly regarding environmental damage in pre-industrial times, in the Middle East they ran out of trees over two thousand years ago and had to import ...
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3 votes

What is the IPAT identity, and does it still matter?

The IPAT equation can be useful as a tool to describe the high-level factors involved in assessing sustainability world wide or for a particular good or service. The letters stem from the I=PAT ...
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3 votes

What are ethical ways to curb the global human population increase?

It has already been stated that population growth decreases in countries that experience an increase in prosperity. It seems clear to me that this goes hand-in-hand with access to education for all ...
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3 votes

What are ethical ways to curb the global human population increase?

Let me challenge the framing of the question: Your premise -- that population size per se strains natural resources -- is wrong. What strains natural resources is overconsumption, i.e. consumption of ...
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2 votes

What are ethical ways to curb the global human population increase?

Even though I agree with most of the previous answers that education and economic equality would be the most efficient mechanics in the long-run, I feel like they do not directly answer your question ...
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  • 133
2 votes

What are ethical ways to curb the global human population increase?

Fight to poverty. In fact this is the main goal of the UN agency for sustainable development. People living in poor countries use to have more children because they need somebody to take care of them ...
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2 votes

Is there a scientific consensus whether lifestyle or amount of human population the biggest problem

The core problem is the scale of pollution overall. Let's take excess anthropogenic greenhouse gas releases as being our single worst problem, which, broadly speaking, it is. We know we need to get ...
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  • 14.6k
2 votes

Is there a scientific consensus whether lifestyle or amount of human population the biggest problem

You don't need a "scientific consensus", you just need "math". Consumerism (the exploitation and consumption of natural resources to support modern/unsustainable lifestyles) is what produces ...
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2 votes

Is global population growth ignored in sustainable energy discussions because it makes any effort seem futile?

Population control programs have always been controversial. Many compulsory sterilization programs have been implemented by various countries over time. China's now abandoned one child policy was ...
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  • 3,207
2 votes

What would happen to greenhouse gas emissions if no more humans were born?

I'm not a demographer, but I attempted a first order approximation based on what I could find. World-O-Meter has a page with world age structure grouped into buckets of 5 years (eg. 20-24). I roughly ...
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  • 2,749
2 votes

How is the recycling of renewables not a huge pressing issue?

Initially addressing the issue of recycling wind turbine blade. Apparently Kaunas University of Technology in Lithuania and the University of Strathclyde in Glasgow and Norwegian offshore wind ...
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  • 3,207
2 votes

Is global population growth ignored in sustainable energy discussions because it makes any effort seem futile?

Many population growth estimates actually suggest that the growth will slow down in the future. The main arguments are that the global fertility rate is decreasing and that the median age of the ...
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1 vote

How is the recycling of renewables not a huge pressing issue?

Doesn't this stuff cost too much in terms of using rare Earth elements? If this means these rare chemical elements, then no, it doesn't cost too much. Turbine blades contain no rare Earth elements. ...
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1 vote

Is there a scientific consensus whether lifestyle or amount of human population the biggest problem

Whether serious studies have occurred I do not know, but you surely can answer your question yourself without much effort. For the effect of over-population of an area go visit a beef-stockyard, ...
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1 vote

What is the maximum sustainable population of the earth?

The largest issue with answering this question is that it depends heavily on other factors, some of which are quite hard to predict. Consider https://en.wikipedia.org/wiki/Energy_intensity , which ...
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1 vote

If everyone were to be vegetarian, what would be the carrying capacity of the Earth?

The answer by Jean-Paul Calderone correctly specified how much population the food can support. I'm not focusing on that at all in my answer; I'm only focusing on energy. This answer, however, did ...
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  • 3,027
1 vote

How to use Maximum Sustainable Yield concept with given a given population, growth rate and carrying capacity?

Since this is a homework question I will help you, but not give away the answer (which I cannot do anyway, because you didn't include the necessary information for that). You are correct that you ...
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