> Western legal systems and governments traditionally viewed water and water rights as property, leading to overuse and contamination
That’s exactly the opposite of what is true. At least English law has never treated water as property. In England, and most of the east and midwest of the US, riperian doctrines apply to water. (I’m going to leave out the west coast, which has a nutso way of doing things.)
Common law riperian doctrine was strict: upstream property owners cannot impair the quality of water flowing through their land because downstream property owners have a right to unimpaired water quality. If we still did this, our rivers would be very clean! During the industrial revolution, the riperian doctrines were made looserc weakening the rights of downstream property owners.
The problem is that we don’t treat water like property. We can pollute it freely because nobody can sue us for it. I live on a river, and we can’t swim after a heavy rain because of all the crap washed into the river from upstream farms. If I had property rights in the water, I could sue those farmers, and the price of food would rise to reflect the externalities of farming. But we treat water as a commons, where no individual has enforceable property rights.