And the ratio is moving closer to one to three.
But neither the post itself nor the comments under it quite nailed the issue for me, so here goes with another attempt. Is it really population control and capitalism control? Doubtless population and capitalism remain underlying problems, investing other issues — such as plastics in the ocean.
Again, though, are population control or capitalism control the best means we have of addressing these other issues right now?
The most efficient remedy would seem to be targeting investment in waste management systems in the relevant places. The main problem with plastics in the ocean is plastics in the ocean.
Alongside strategies to reduce plastic pollution, strategies to reduce population and transcend capitalism also have their place.
It would be a good thing if human population was lower than it is. Certainly not plastics in the ocean. Theories and causes Nevertheless, it seems clear that high levels of human population lurk somewhere behind the numerous environmental crises of our age.
But exactly how to elucidate the relationship between population and environmental impact is less obvious. In other words, you have two numbers multiplied by each other — which one is more important?
If you hold one constant and let the other vary, you are still multiplying. Let me take this example.
Japan Population Growth Declining Birth Rate and the Problems Words Apr 23rd, 11 Pages a) Study a country on how and why its population has aged rapidly during the last 40 or 50 years, and analyze its consequences. A population decline (or depopulation) in humans is any great reduction in a human population caused by events such as long-term demographic trends, as in sub-replacement fertility, urban decay, white flight or rural flight, or due to violence, disease, or other catastrophes. Japan Population Growth Declining Birth Rate and the Problems Words Apr 23rd, 11 Pages a) Study a country on how and why its population has aged rapidly during the last 40 or 50 years, and analyze its consequences.
In the s the global whaling fleet was catching about 25, fin whales annually. We could take the fin whale catch as one indicator of environmental impact. Global human population was about 3. Only a handful of nations were involved in whaling, and catch levels were determined by various factors that had little to do with global population.
You need to fit a theory to the data, not data to a theory.
Doubtless there are other issues where population level does have a more direct and independent effect — greenhouse gas emissions, for example. Some populations do a lot more of those things than others. So generally speaking, v seems to me a more important variable to focus policy attention around than p.
In just fifty years, global fertility has more than halved, from an average 5. In three of the five most populous countries of the world, fertility rates are considerably below replacement rate — and in fact this is true in about half the countries of the entire world.
I would have thought that the trend shown in this graph would be widely celebrated by the anti-population lobby, but it scarcely seems to get a mention. Fertility rates have to drop first before population rates do, just as a car has to stop accelerating before it can start slowing.
Certainly, it would have been hard to implement official population control policies globally as effective as this gigantic act of self-implementation, and perhaps unwise too — many countries are going to face significant social problems in the coming century as a result of this demographic collapse, however welcome it may be for other reasons3.
Maybe the idea of settling in to our existing local places for the long haul at historically very high, but soon to be declining, numbers might prompt some more sober thinking about the possibilities of a more sustainable, steady-state kind of agriculture.
Against the notion that peasant farmers always have high fertility, the evidence suggests that in situations where population pressure on land is a limiting factor which could well be the case for a lower energy, small farm future in a country like Britainpeople attempt to keep their fertility levels low4.
My guess is that while other countries will try to ape the high-consumption low-fertility western style, not many will succeed and in the longer term that high consumption low fertility style will go the same way as other weird religious cults of the kind that emphasise celibacy and service to some jealous and demanding god.
People will get old, the freezers containing the corpses of the transhumanists will run out of juice, the trinkets will lose their lustre, and ultimately our societies will be replaced by ones that are better able to farm and function at sustainable levels of energy use by attending more to v and not so much to p in equation 3 above.
Notes Schmidt, Christian et al. Export of plastic debris by rivers into the sea.There is a concern about declining birth rates in both the developing and developed world (ashio-midori.com).
Fertility rates tend to be higher in poorly resourced countries but due to high maternal and perinatal mortality, there is a reduction in birth rates.
Birth rates are falling across Europe leading to a 'perfect demographic storm'. Photograph: Bernd Vogel/Corbis W hen Spanish business consultant Alejandro Macarrón started crunching the numbers behind Spain’s changing demographics, he .
The rates of population growth are not the same, of course, in all parts of the world. Among the industrialized countries, Japan and most of the countries of Europe are now growing relatively slowly—doubling their populations in 50 to years.
person now alive, or people to each square foot.
If the present world population should continue to increase at its present rate of two per cent per year, then, within two centuries, there will be more than billion people.
Japan Population Growth Declining Birth Rate and the Problems Words Apr 23rd, 11 Pages a) Study a country on how and why its population has aged rapidly during the last 40 or 50 years, and analyze its consequences. Japan Population Growth Declining Birth Rate and the Problems Words Apr 23rd, 11 Pages a) Study a country on how and why its population has aged rapidly during the last 40 or 50 years, and analyze its consequences.