Might the better option be a hybrid truck, which runs on electricity 90% of the time but has the capacity to use fossil fuels in situations such as these? (snow is but one example, I can imagine other exceptional circumstances where such a vehicle might need an extra boost).
To balance your suggestion, the environmental cost of constructing, shipping, and maintaining a fleet of single-purpose snow plows is not close to zero.
Along the same line, can we modularize these trucks? Like the specific parts useful for snowplowing, can we take them off the rest of the year (less gas wasted) and add them back on only when needed
To balance your suggestion, the environmental cost of constructing, shipping, and maintaining a fleet of single-purpose snow plows is not close to zero.