Is there a site that provides stats built upon a computer model
 

...that provides info about how long the earths resources will last based upon the current exponentially growing population. I can remember years ago that some university did a computer model about how many people could be supported for an infinite period of time with the resources available in the United States and it was a surprisingly low number of 50,000 people. I took that study with a grain of salt.

As a cattle rancher knows what resources he needs in grazing land and water to support x number of head of cattle for an infinite period of time without destroying the productivity of the land and water resource...the cattle rancher concept would also apply to the human population and the finite resources that are available on the earth.

Any input?

Anyone??

Population growth will be affected before resources run dry.

And was your 50,000 study based on hand growing stuff or mechanised farming?

It wasn't my study and it has been so many years ago that I only remember the study had a surprisingly low population level...one that I did not believe.

Surely someone has set up a more recent computer model with new stats.

Aren't you just looking for "carrying capacity" of a species?

I am looking for a site...based upon a new computer model about stats...that I mentioned in my original post.

That would be interesting data to see. Please post a link if you find it.

There are some interesting stats here.

http://en.wikipedia.org/wiki/Ecological_footprint

Though that is not what I am really looking for.