RE: https://techhub.social/@psvensson/116633472545269867
This early morning information from insomnia-scrolling Mastodon led me to learn about the Indus Valley Civilization—cities with sewers 2k years before Jesus!
The only attribution for decline is an association with a worldwide decline ~1700 BCE due to a 100-year mega-drought + cooling climate change ("4.2-kiloyear event") from a significant weakening of the Atlantic meridional overturning circulation, which scientists fear will occur again in our lifetime due to carbon emissions.
Good morning…