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Comment by Self-Perfection | Hacker News Reader

I think your expedition was actually along Aral sea. That is dried.

Caspian sea is rather stable.

The Volga Hydroelectric Station, located on the Volga River, directly impacts the Caspian Sea. The Volga River, Europe’s longest, flows into the Caspian Sea and contributes about 80% of its freshwater inflow. The construction of the Volga Hydroelectric Station and other dams along the river has altered its natural flow, reducing the volume of water reaching the Caspian Sea. This reduction has contributed to the sea’s declining water levels. https://earthobservatory.nasa.gov/images/150452/the-caspian-...

Is that the dam from metro exodus?

Would make sense considering a previous level is called «The Volga», and the level with the dam[0] supposedly was to be called that. The oil rigs in the later level is decidedly the Caspian[1] though!

[0] https://metrovideogame.fandom.com/wiki/The_Taiga_(Metro_Exod...

[1] https://metrovideogame.fandom.com/wiki/The_Caspian_(Metro_Ex...

I wonder how Caspian Sea levels looks on a graph over a longer time span (haven't found one quickly).

In 1970s there was a project to connect rivers Pechora and Kama [1] to redirect water flow and increase levels of the Caspian Sea which were declining at that time. The project was abandoned but the Caspian sea levels started to increase in late 70s and 80s even without geoengineering.

[1] https://en.wikipedia.org/wiki/Pechora%E2%80%93Kama_Canal

Doesn't seem like it's that stable at all

https://geographical.co.uk/science-environment/the-caspian-s...

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