salt or sand on ice?

Now we're surprised with such a wonderful layer of snow it's important to know that cleaning the pavement is not simply removing the snow, but that it's also about other ways of preventing people to fall.

We're inclined to use salt to inhibit ice to form, but it's not always wise to use salt.
Not only does it interfere with plant life, but it also doesn't work below certain temperatures.

Using sand in that case is a good option.

Don't forget to throw more sand when a new layer of snow has formed.