A growing body of research suggests that road salt contributes to metal corrosion and can have a negative impact on ecosystems. Despite the introduction of some successful alternatives, many Canadian cities are still using salt because it's cheaper.
Volcanic ash and beet juice. It's such common sense that regular salt is fucking everything up. You telling me that you gona blast salt on a 6 lane highway for 300 km and expect it not fuck up the local water way from the drain run off?
Its interesting that any discussions about road salt always start with cars being the leading argument. Car dependency is so intertwined in our current society.
Also, worth noting salt causes corrosion to cars, infrastructure, and not to mention in large quantities causes negative environmental effects, but gravel has a chance of chipping my windshield?!
The different between salt and gravel damage to a car is just time span. Us humans are just really bad at perceiving long term effects. So naturally gravel being what cases damage sooner to a car is assumed to be far worse.
Now if you think of snow removal on sidewalks and walkways. Gravel and sand, or just compacting the snow like they do in Sweden is just as effective.
Here is some videos of snow removal at the pedestrian level, notice no salt is used on pedestrian infrastructure such as walkways or trails.
Just plough? Require snow tires? I've always had snow tires and it's never been a problem living in an area that just sands the roads occasionally but mostly does nothing.
Ya it's always blown my mind how we just spray salt everywhere which just gets washed directly into local streams and creeks. It's bad enough that oil and gas go down the roadside catch basins but deliberately injecting salt through them seems a little silly.