... water pollution and ... have made [canal freezing] so rare...
What mechanism does water pollution have in freezing point depression? Surely they don't have enough dissolved solids to make a significant difference. A quick googling didn't reveal an easy answer. Perhaps this is "hacker knowledge".
What mechanism does water pollution have in freezing point depression? Surely they don't have enough dissolved solids to make a significant difference. A quick googling didn't reveal an easy answer. Perhaps this is "hacker knowledge".