source please. sorry, unbiased source please.
The claims such as the above that I have seen, seem to be presuming that humans are too dumb to adapt and make technological advances during this growth.
1. Unlimited energy from sun, wind, even wave motion from the ocean.
2. Food technology is so advanced (and will advance even more) we could easily feed everyone.
3. You have to assume we will figure out how to re-cycle everything, and more than one time, there are daily advancements in this.
4. There are many ore points but you get the.... point.