[siruncledrew]

> The shortage of resource because of over-population is an old theory, but we've seen no evidence to it yet.

That doesn't deny that it's still happening though. This sounds like the kind of argument Exxon, Nestle, or a logging company would use to continue siphoning up resources while saying "Well, we're all still alive, so no harm done." That's very short-sighted and limited thinking. There are many other consequences of an increasing population that by proxy contribute to resource depletion, such as pollution and over-development for example.

In a non-human comparison, look at the damage that happens when an invasive species enters a new environment and over-populates. The native flora and fauna suffer and the resources they rely on begin to disappear. Then we end up with a Lorax-like scenario.