by MonteQuest » Wed 19 Sep 2007, 22:47:18
$this->bbcode_second_pass_quote('Ludi', 'O')k, I guess I misunderstood you.
Would you accept a reference which speaks about world carrying capacity but is not a "world carrying capacity study"?
I could post some references, but there's never been any indication that you might read them. Is it worth it for me to post them again, Monte?
Ludi,
I have been in the habit of reading your links all the time.
People need to read and understand what
causes a population to overshoot.
Overshoot and "exceeding the carrying capacity" are two entirely different concepts that most not schooled in ecology consistently fail to grasp.
Overshoot comes from a heretofore unacessible source of energy/food. It causes the population to exponentially overshoot carrying capacity by orders of magnitude.
On the other hand, species populations always push up against natural limits and sometimes exceed them, but not for long and not massively.
As Charles Darwin noted:
"The cumlative biotic potential of any given species always exceeds the carrying capcity of it's environment."
The sequel to overshoot is always a die-off.
The sequel to what Darwin referred to is a slowing of the birthrate and a gradual population reduction around the carrying capacity.
For humans, without fossil fuels to achieve the "phantom" carrying capacity that leads to overshoot, we would have been restricted to the real carrying capacity of renewable energy sources.
Our population birthrate would have slowed, and we would have stabilized around that level. Maybe 2 to 3 billion. Maybe a billion or so more, depending upon how we lived.
But our population birthrate
is slowing, you say?
Not because of nature imposing limits, it is not; but by the product of demographic transition brought about through the advent and use of fossil fuels. A
temporary effect.
Thus, we can change our lifestyle to accomodate what Darwin speaks of, but we can only die-off or reduce the existing population by choice to cope with overshoot.
To anyone who thinks otherwise, I suggest a course in ecology/biology...because that is current science, not my opinion.
A Saudi saying, "My father rode a camel. I drive a car. My son flies a jet-plane. His son will ride a camel."