Why is there starvation in human populations?

[m.e.t.a.]

Somewhere between one third and one half of [STRIKE]all human deaths [/STRIKE] all deaths of children under 5 are caused, either directly or indirectly, by malnutrition.

Human starvation is an issue which is surely on all our minds a great deal of the time. It is often discussed, and there is a mountain of data on the subject. But there are still some questions about starvation which I am largely ignorant.

I have two main questions. For each question, it can be presumed that I refer to some local region/population which suffers greatly from starvation.


1. Is the supply of food and water insufficient?

Is starvation caused, in part, by the supplies of food and/or water diminishing over time, eventually reaching levels too low to sustain the local population? If so, what factors contribute to this diminishing supply?

i) Climate change / unprecedentedly adverse weather.
ii) There is ample farmland to support the population, but the crops fail more often than they used to, or are now more frequently ravaged by pests.
iii) The number of able farmers is diminishing.
iv) The quality of the water is decreasing year on year, e.g. due to chemical contaminants, parasites, or harmful microbes.
v) Diminishing supplies of cattle, fish, and other animals.
vi) Other factors...?



2. Is there overpopulation?

Is starvation caused, in part, by the human population growing unchecked until it is too large for the available farmland to support? If so, what factors contribute to this overpopulation?

i) There is insufficient birth control (and the instinct to copulate is too strong to resist).
ii) There is widespread rape in the region.
iii) It is traditional or customary to have many children.
iv) Having many children benefits you personally (e.g. the children will grow into adults who will then help support you and your family).
v) There is mass immigration to the region.
vi) Other factors...?



I apologise if some of these questions are considered taboo, or so obvious as to require no explanation. But I would be grateful for any answers to any of the questions. In particular, I'd like to know whether both (1) and (2) are equally significant causes of starvation, or whether one is far more significant than the other.

 

[Jack21222]

Somewhere between one third and one half of all human deaths are caused, either directly or indirectly, by malnutrition. This makes malnutrition a bigger killer than cancer and heart disease combined.

Do you have a source for this? 1/3rd sounds possibly believable, but I have a hard time seeing 1/2.

 

[m.e.t.a.]

Do you have a source for this? 1/3rd sounds possibly believable, but I have a hard time seeing 1/2.

I thought that seemed very high as well. I should not trust everything I read on http://en.wikipedia.org/wiki/Malnutrition#Mortality":

"According to Jean Ziegler (the United Nations Special Rapporteur on the Right to Food for 2000 to March 2008), mortality due to malnutrition accounted for 58% of the total mortality in 2006."

Other sources suggest that this figure of approx. 50% pertains to deaths of children (approx. < 5 yrs), not of the whole population. So you are correct: I got my figure wrong. From the World Health Organisation:

" ... [malnutrition] is responsible, directly or indirectly, for 35% of deaths among children under five."

"Recent estimates suggest that malnutrition (measured as poor anthropometric status) is associated with about 50% of all deaths among children."

I can't find any data on adult deaths due (directly or indirectly) to malnutrition. (And anyway, there is no precise definition of what constitutes "death due indirectly to" or "death associated with".)

However, adult data aside, the malnutrition death rate among children under 5 alone is horrendous: at least five million deaths per year, or nearly 10% of all deaths.

 

[skeptic2]

This is a very interesting question. One would expect that over several generations the population in a region would stabilize to what the land and water can support. That this isn't happening suggests additional factors at work. I'm sure there must be other factors but one of the more important I think is corruption. I read once that there is a high correlation between poor countries and corrupt countries. Closely related is the existence of oligarchies in which the wealth of the few depends on the poverty of the many.

 

[Hurkyl]

1. Is the supply of food and water insufficient?

Is starvation caused, in part, by the supplies of food and/or water diminishing over time, eventually reaching levels too low to sustain the local population? If so, what factors contribute to this diminishing supply?

i) Climate change / unprecedentedly adverse weather.
ii) There is ample farmland to support the population, but the crops fail more often than they used to, or are now more frequently ravaged by pests.
iii) The number of able farmers is diminishing.
iv) The quality of the water is decreasing year on year, e.g. due to chemical contaminants, parasites, or harmful microbes.
v) Diminishing supplies of cattle, fish, and other animals.
vi) Other factors...?

Here's one 'other factor' to consider:

vii) Lack of distribution. (due, I presume, to political/monetary concerns)​

2. Is there overpopulation?

Is starvation caused, in part, by the human population growing unchecked until it is too large for the available farmland to support? If so, what factors contribute to this overpopulation?

i) There is insufficient birth control (and the instinct to copulate is too strong to resist).
ii) There is widespread rape in the region.
iii) It is traditional or customary to have many children.
iv) Having many children benefits you personally (e.g. the children will grow into adults who will then help support you and your family).
v) There is mass immigration to the region.
vi) Other factors...?

I have an 'other factor' to consider for this one too:

vii) The local region is disinclined to allocate land for farmland (or, at least, farmland meant to feed the local population)​

 

[Pythagorean]

The matter of distribution has to be significant with how much food waste I see in the US.

 

[AlephZero]

The matter of distribution has to be significant with how much food waste I see in the US.

Does your definition of "waste" include "convert into biodiesel"?

 

[cobalt124]

The matter of distribution has to be significant with how much food waste I see in the US.

http://news.bbc.co.uk/1/hi/6456987.stm

In the U.K., about a third of purchased food is thrown away, though half of this is inedible (tea bags, bones and so on).

 

[lisab]

Ultimately, the reason some humans starve is because it's allowed to happen.

 

[DaveC426913]

One would expect that over several generations the population in a region would stabilize to what the land and water can support.

I have nothing to back this up but I think there is a belief in some poorer countries that high mortality does not mean have fewer babies, but have more babies.

 

[Pythagorean]

Does your definition of "waste" include "convert into biodiesel"?

no :)

 

[rootX]

I don't find food wastage argument strong enough. If people waste less food, they will spend less on food. That suggests either suppliers go out of business or they give rest of the food to other parts of the worlds for free which I don't see coming? So, stopping wasting food will likely not solve the problem of hunger.

 

[rootX]

I have nothing to back this up but I think there is a belief in some poorer countries that high mortality does not mean have fewer babies, but have more babies.

They produce like there's no tommorow (joking) but I recall starting a thread why do poor people have children when they cannot support themselves.

 

[DaveC426913]

They produce like there's no tommorow (joking) but I recall starting a thread why do poor people have children when they cannot support themselves.

At the risk of seeming disrespectful, I think it's the gambit of cod and sea turtles. Have many, hope some survive. There's a name of it that escapes me.

 

[russ_watters]

I'm sure there are many reasons for the higher birth rates in 3rd world countries and yours may have something to do with it, but there is another that likely also plays a significant roles: lack of contraception.

 

[rootX]

Literacy rates:
http://world.bymap.org/LiteracyRates.html

Infant mortality rate:
https://www.cia.gov/library/publications/the-world-factbook/rankorder/2091rank.html

Birth rate:
http://en.wikipedia.org/wiki/List_of_sovereign_states_and_dependent_territories_by_birth_rate

Country by mortality rate (sorted by mortality, Angola highest) : Literacy rank (213 total) : birth rate rank
Angola : 174 : 8
Afghanistan: 211 : 5
Niger: 210 : 1
Mali: 201: 2
Somalia: 206 : 7

I could go and try to prove that mortality/birth rate is a problem among poorly literate countries .. but don't feel like it.

 

[Stephen Tashi]

Some distinction needs to be made between "malnutrition" and "starvation". Malnutrition can happen to people who have no sense of being hungry.

 

[WhoWee]

Here's one 'other factor' to consider:

vii) Lack of distribution. (due, I presume, to political/monetary concerns)​

I think you've identified the nasty secret - food is available but it doesn't (consistently)reach the people who need it - for a multitude of reasons.

 

[skeptic2]

I think you've identified the nasty secret - food is available but it doesn't (consistently)reach the people who need it - for a multitude of reasons.

Well let's identify the reasons.

Food doesn't reach the people because...

- they are too poor to pay for it.
- the food is highjacked along the distribution route.
- societal, political or environmental changes have destroyed the previous routes of distribution and new routes don't exist yet.

 

[WhoWee]

Well let's identify the reasons.

Food doesn't reach the people because...

- they are too poor to pay for it.
- the food is highjacked along the distribution route.
- societal, political or environmental changes have destroyed the previous routes of distribution and new routes don't exist yet.

Don't overlook waste, storage rot, infestation, and hoarding.

 

[BWV]

the Indian Nobel prize winning economist, Amartya Sen noted that famine is nonexistent in functioning democracies - the political pressures on governments ensure that relief will get to areas stricken by disaster, crop failure etc. On the other hand, mass famine was a defining characteristic of communist regimes, from the USSR in the 1920s through the Great Leap Forward to Cuba after the collapse of the Soviet Union. Famine also occurred in colonial regions, such as Bengal in 1943, where the British government was not accountable to the local population

 

[WhoWee]

the Indian Nobel prize winning economist, Amartya Sen noted that famine is nonexistent in functioning democracies - the political pressures on governments ensure that relief will get to areas stricken by disaster, crop failure etc. On the other hand, mass famine was a defining characteristic of communist regimes, from the USSR in the 1920s through the Great Leap Forward to Cuba after the collapse of the Soviet Union. Famine also occurred in colonial regions, such as Bengal in 1943, where the British government was not accountable to the local population

How are the events similar in the context of this thread (distribution, funding, availability, theft, waste, ?) - what is your conclusion?

 

[BWV]

How are the events similar in the context of this thread (distribution, funding, availability, theft, waste, ?) - what is your conclusion?

For at least the past 100 years famine has been solely a product of bad political and economic policy, not overpopulation, global warming, ozone or any of the other factors you mentioned.

 

[WhoWee]

For at least the past 100 years famine has been solely a product of bad political and economic policy, not overpopulation, global warming, ozone or any of the other factors you mentioned.

That's a very wide brush-stroke, care to be more specific?

 

[BWV]

That's a very wide brush-stroke, care to be more specific?

I think my OP addressed the point adequately, if you want to provide counterexamples then be my guest.

 

[croghan27]

Good point, rooteX - uneducated women tend to have more children that the educated.

I am sure it is not a physiological condition - but has something to do with being empowered. The countries with the highest birth rates are the counties with the fewest educated women.

Even in well educated societies, as in the west, those with most education tend have the least children.

(No I do not have readily available references for what is stated above - but they are easily available.)

 

[WhoWee]

For at least the past 100 years famine has been solely a product of bad political and economic policy, not overpopulation, global warming, ozone or any of the other factors you mentioned.

When did I mention global warming and ozone?

 

[BWV]

When did I mention global warming and ozone?

sorry, just hyperbole

although did not read your OP close enough to see it was talking about chronic malnutrition rather than famine

the cause of chronic malnutrition is simple - agriculture. It enables a large population dependent on cheap carbohydrate calories from a few food sources. Hunter gatherers tend to have a more diverse, higher quality diet.

 

[croghan27]

the cause of chronic malnutrition is simple - agriculture. It enables a large population dependent on cheap carbohydrate calories from a few food sources. Hunter gatherers tend to have a more diverse, higher quality diet

.

Can't agree with that one, BMW. The land required to produce a vegetarian diet is far less than then needed to process the veggies through beasts.

I would think that some famines are purposely man made ... Pol Pot did a good job here - but he was only a tip ... starvation is a decision. Whether political as in North Korea adhering to a system that has not and does not work, or economic, as in Africa where the west takes billions of dollars of their goods and leaves them to starve.

 

[skeptic2]

I would think that some famines are purposely man made ... Pol Pot did a good job here - but he was only a tip ... starvation is a decision. Whether political as in North Korea adhering to a system that has not and does not work, or economic, as in Africa where the west takes billions of dollars of their goods and leaves them to starve.

Thank you croghan27, this is the point I was trying to make in post #4. Intentionally keeping wages so low that a family cannot even buy enough food creates a working class that is not willing to risk the little they have for a change that is as likely to be for the worse as for the better. In addition, low wages works to the benefit of a wealthy ruling class. When the workers are malnourished, the free market no longer works. Workers will not risk quitting their jobs in favor of better ones if they don't like their salaries or working conditions.