How well do trees handle beet juice? Could that be an alternative to salt for the bike path?
If they were using the beet product (which isn't juice) in a pure form, it would be vastly less harmful.
The beet 'juice' is a by-product of processing sugar beets.
Now, that said, the product is rarely used 'straight'.
It's typically blended w/salt and brine.
But it does still reduce salt significantly, both by volume w/i the mixture, but also because the mixture is slightly sticky, there is reduced salt splatter of somewhere between 5-30%.
So what it comes down to, is that yes, the beet-brine combo is much more eco-friendly.
However, it is also more expensive, which is the primary reason you see less of it used.
You tend to need less of it, mind you, I have yet to see a clear study on how much the net cost/savings it when it's all balanced out; but at $ per litre it is much more expensive that straight salt brine.
It also has a rather curious smell, which I'm not sure how most people would feel about.
Somewhere between Soy Sauce and Burnt Coffee is most people's description, though I heard someone describe it as 'tootsie roll'.
The smell dissipates after a few hours.