The hearthlands should get polluted from the emissions of kilns, smelters and everything else.
Hearthlings should face the consequences of pollution for producing their useless garbage.
The hearthlands should start thinking about the carbon neutrality. If the hearthlings of the hearthland don't care about this and the pollution threshold is reached, hearthlands should exprience apocalyptic events like drought, floods and so on that would destroy their trash villages and give them diseases