Yep! These were Little Ice Age prevention measures, or maybe Roman Warm Period investments. Still expenses. State should have been involved, economic incentive

Yep! These were Little Ice Age prevention measures, or maybe Roman Warm Period investments. Still expenses. State should have been involved, economic incentives, campaigns like "Burn the coal - stay Huns home" Everyone knew it, but then as now too little to late https://en.wikipedia.org/wiki/Little_Ice_Age https://en.wikipedia.org/wiki/Little_Ice_Age https://en.wikipedia.org/wiki/Roman_Warm_Period https://en.wikipedia.org/wiki/Roman_Warm_Period