This seems to be most important part. It could be beneficial as prevents evaporation and warming. LA reservoir even has floating balls for this https://www.nati

This seems to be most important part. It could be beneficial as prevents evaporation and warming. LA reservoir even has floating balls for this https://www.nationalgeographic.com/science/article/150812-shade-balls-los-angeles-California-drought-water-environment https://www.nationalgeographic.com/science/article/150812-sh...