How much population can our planet Earth sustain with the present resources available?

Question

Apparently there are limitations to our global growth and it has to reach a certain time or level in the future. There must be scientific or economic models to better determine when that will be.

Answer 1

I've read a UN report that says world population will hit 9 billion in 2050 and stabilize in 2150 at 10 billion. The report shows that our population growth has already started to slow down. This may not help directly, but it may prove a good indicator of the earth's capacity.

Answer 2

Earth is a big place where the surface area is 510,065,600 km² and its total volume is 1.0832073×1012 km³.
That’s really big. If you combine all the cities on the face of the planet it only amounts to 2 or 3 percent of the total land mass. Even with the expanded populated areas over the next 100 years won’t put a dent in our resources. So don’t listen to these alarmists.

And by the way ; Starving people have nothing to do with the Earth running low on resources, that’s economics…

Answer 3

it has already been determined that the present population is using resources faster than the planet can sustain them, if we are to survive as a species, we will have to expand our resource base to include other solar system bodies...for example, the asteroid belt would provide a tremendous stock of bulk metals, Saturn's moon Titan would be an excellent supply of hydrocarbons, etc.....the problem is not so much as utilizing these potential sources, but getting there and sustaining harvesting of those resources.

Answer 4

I've heard estimates that, if the world's resources were spread evenly (unlike they are now), the absolute maximum human population the Earth could sustain would be around 20 million people.

Answer 5

There COULD be a scientific model that would let us guess at this answer, but it doesn't exist currently. Our understanding of the variables involved is insufficient. Anything you get told otherwise is most likely hot air. The number of variables is large enough that no one would be able to make a comprehensive list. Nor, would we be able to accurately predict how the variables would affect the model. What is statistically significant varies. The variables all effect one another. And the magnitude of any effect depends on what is included in the model.

We might someday be able to make a viable and testable model, but we don't have one today.

Answer 6

I used to imagine it turned right into a inhabitants boost causing the challenge, yet now i imagine it really is more suitable than that. money will continuously outweigh source administration, and the majority are to blame of it. In Britain, the global warming theory is capitalised on, and makes money, yet in a lot of alternative parts of the international it really is the option. If it really is more low-cost to suck a source dry instead of recycling, marketing campaign for capacity conservation, emission administration and so on then why difficulty? money does make the international flow round, regrettably. yet for instance, ought to you agree for a visectomy if the authorities provided you an important sum? The sentient contained in the Matrix defined the human race as reminiscent of that of a pandemic, killing off an section to the point of unsustain, then shifting on to a special. He had a level.

Answer 7

5.8 billion. 850 million out of earths 6.6 billion inhabitants are starving today.