Nice article here:
My comment on this is:
Could it be that what we need is fewer people? Maybe it's not an accident that economic progress in China occurred some years after a "one child" policy was instituted?
There's pain in this path as well. Japan's aging population (because there are fewer young people relative to the aging baby boomers) is one factor in their economic stagnation over the last 20 years. But note that that stagnation occurs at a high standard of living, minimizing the pain.
In the US, we face the same problem over the coming decades until we baby boomers die off, but from a longer perspective that's just a short term blip.
We can't forever spend more than we take in. We can't forever increase our resource use. We can't forever have a growing population.