I think Bilby means that population increase BY ITSELF is not a problem, since our best current projections predict population growth is scheduled to level off later this century and then decline (and decline has its own problems, as Japan is finding out). The problems lie elsewhere.
We have been over this many times in this thread. Yes, the UN says population will level off at about 130% of the current population, and perhaps even start to decline.
The problem is that we are already in overshoot. The Global Footprint Network calculates that it would take 1.75 planets to sustainably support us. We continue on, but the overshoot is rapidly deteriorating our planet.
I got curious about this and looked it up. There are several different formulations. One is that today we are using resources AS IF we have 1.75 earths. Another is that to sustain our CURRENT world population, we WOULD NEED 1.75 earths. And so on.
It’s rather odd. What does it really mean? Nothing, so far as I can tell. It’s vacuous. Clearly, we ARE sustaining (albeit badly in many cases) our CURRENT world population, with ONE earth — the other .75 of an earth is nowhere to be found, which strongly suggests it is not actually needed.
The Ecological Footprint calculated by the
Global Footprint Network is a measure of the amount of land required to
sustainably replace renewables and absorb our waste carbon as fast as we impact the planet.
If, for instance, you are burning wood from a forest at twice the rate that the forest can renew it, that is not sustainable. But if you had twice as much forest, and burned at the same rate, that is sustainable for a long time.
To compare the promise of technological advances to the empty promises of religion is obviously empirically unwarranted. Technology produces results (often, granted, with unforeseen and unintended negative side effects), while religion produces zilch except intolerance and ignorance.
If the best available science told you a major hurricane was very likely to hit your hotel along the coast in the next day, would you be concerned? Or would you tell us you are trusting science to produce results and divert the hurricane away from you?
If the best available science told you a relative would die within weeks, would you be concerned? Or would you tell us you are trusting science to produce a miraculous cure?
Similarly, if the best available science told you nuclear power will be helpful, but it will not be able to prevent a major energy crisis and global collapse in the coming centuries, would you be concerned?
There is still a lot we don't know. Perhaps there is indeed a technological solution that is not fully apparent now. If you read my paper--
https://mindsetfree.blog/we-are-overloading-the-planet-now-what/ -- you would know that I strongly support the search for technological solutions to our predicament. So please do not make this an issue that only some people here support science. We all support science.
But we cannot simply say, "We need nuclear power to save us. We want nuclear power to save us. Therefore nuclear power will save us." That is a religious statement, not a scientific statement.
Do you agree that, when we seek to understand if science can do something, we should go by the best available science to tell us the likelihood that science can do it, rather than having blind faith that science can do anything we want?