Charles C. Mann : How will we survive when the population hits 10 billion?

Charles C. Mann at TED2018  (transcript)
How will we survive when the population hits 10 billion?
Summary
Now, in 2018, the world population is 7.1 billion. I've often heard that　in the near future, it'd become 8 billion. However, it seems to continue increasing. The speaker tells us that in 2050, 10 billion people will live on earth. However, it means that if human species might not be extinct. It can't be laughed by us because the species that is outbreak is going to hit edge the petri dish certainly.

The speaker suggests ideas to avoid extinction, I think that he has prejudices, though.
However, we can't say that because we don't have time to survive. We stop only waiting to develop technology to help us and stop only using lose and conserving.  We can't save our earth and 10 billion people if we are divided or we don't listen to other opinions.
The point is to work together. Climate change, lacking food, lacking water, and lacking energy might kill us before 10 billion. We have to cooperate to live together.

Words in this story
extinct /adj/  vanished, lost, died out, no longer existing
starve /verb/ (of a person or animal) suffer severely or die from hunger.
compel /verb/  force, pressure
protozoa /noun/ simple and old organisms
transgress /verb/ contradict, oppose, be inconsistent with