posted on Aug, 24 2009 @ 03:07 PM
In fact, we are running out of arable land. In the US, we pave it over for strip malls and housing developments. In other parts of the world,
erosion takes a toll, as does desertification. In the meantime, we're running out of water and fuel.
The problem isn't so much with crowding. The entire population of the earth would fit into the Grand Canyon, according to some calculation or other.
The problem is that for each person we need a certain amount of arable land to grow food, a certain amount of energy, water, and other resources.
We're running out of those resources.
So far, technology has been able to increase the crop yield of land to almost keep up with the growing population. Unfortunately, that can't keep
going. Worse yet, the fertilizers and pesticides we are making not only require energy to manufacture, they require oil as their main ingredient.
Once again, oil shows itself to be crucial for our wellbeing, but oil is in finite supply. It's getting increasingly expensive to get oil out of the
ground. At some point it will take as much energy to extract the oil as we get from the oil, and that will be the end of oil as a source of energy
(though we'll still probably need it for raw materials for pesticides, etc.).
We really can't keep breeding mindlessly. At some point - I'm not saying 2030, but there is some point out there - the population will reach a
critical value, and then it will collapse abruptly as food supplies fail or disease flashes through the population.
Whenever population grows excessively, Nature eventually culls the herd. Nature is not particularly gentle about it. We would be better off avoiding
the cull by ensuring our population remains within healthy bounds - which is probably about half the people we already have.