by EnergyUnlimited » Fri 24 Apr 2020, 09:17:00
$this->bbcode_second_pass_quote('vtsnowedin', 'A') 1930 population of 2 billion using say 2035 technology would put a lot less strain on the environment then the 1930 population did. Most if not all of your base metals could come from scrap yards and recycling with perhaps no need for any new mining.
Base metals you could grossly recycle. Some rarer metals as well.
However many technology critical elements would gradually be gone for good.
Few Lanthanides could be recycled from magnets... and probably from nothing else.
Too low concentrations in tech gadgets to make it feasible.
Other Lanthanides not used in magnets - not recyclable from most of scrap containing them.
The same with many semiconductor elements like tellurium, gallium, indium, germanium etc.
Selenium will be available as long as sulfuric acid is produced in industrial quantities.
Once this acid is no longer produced in large scale - kiss good bye to nearly all advanced tech and most of fertilizers.Hafnium, rhenium or few platinides will join
unobtainium ranks.
Silver is also getting dispersed into non recyclable forms.
Gold could be recycled and refined for long time.
But metals critical to technology will gradually become not available in required quantities.
$this->bbcode_second_pass_quote('', 'H')ow to do things with a reduced population is not a problem it is getting to that reduced population without environmentally catastrophic wars that is the tough nut to crack.
Easy.