https://www.wsj.com/articles/only-nuclear-energy-can-save-the-planet-11547225861
https://fcc-cdr.web.cern.ch/
Fossils
https://news.ycombinator.com/item?id=18914089
RSA
https://news.ycombinator.com/item?id=18913946
https://devhints.io/bash
To remind us of the obvious, "fertility does not equal birth rate":
The Astounding Drop in Global Fertility Rates Between 1970 And 2014
https://brilliantmaps.com/fertility-rates/
Fertility Rate By Country 2019
http://worldpopulationreview.com/countries/total-fertility-rate/
Fertility is
I described a IR-only retroreflector that doesn't need any on-board power in
the searched-for device.
If you want some sort of control by the searcher, why not use something like
using an infrared remote-controller to activate a sensor on a hidden, but
visible package?