One part of this sentence is correct; the other is false:
Water fluoridation is indeed an important preventive measure, that is for the phosphate fertiliser industry to avoid having to expensively store its toxic by-product, fluorosilicic acid. So the measure certainly prevents pesky environmental complications, which would otherwise arise, as seen in years gone by, by allowing for wide-scale waste profiteering instead.
However, to say water fluoridation is, “carried out in much of the western world” is monumentally false. The truth is that most developed nations do not fluoridate their water. In western Europe, for example, only 3% of the population consumes fluoridated water. One wonders how NZIC can get such basic facts so dead wrong.
Beware these slippery fluoridation promoters. These dirty tricks you will find all over.