ten billion - Robuta Search

https://www.buhlergroup.com/global/en/key-topics/Sustainability.html

Finding new means to sustainability feed a population of ten billion by 2050 is a task that no institution can address alone.

https://iucn.org/our-work/projects/third-party-monitoring-ten-billion-tree-tsunami-programme-tbttp-consortium-iucn

https://www.unsw.edu.au/newsroom/news/2016/05/election-factcheck--is-labor-planning-to-increase-taxes-by--100-