1. Because they were not built with cooling by evaporation tower; easily remediable. 2. How do you think other thermal powerplants (gas, coal, ...) work? They,

1. Because they were not built with cooling by evaporation tower; easily remediable. 2. How do you think other thermal powerplants (gas, coal, ...) work? They, too, need to heat water and dispose of it afterwards, so that's definitely not nuclear-specific.