Bitumen is created with a fraction of crude oil that is otherwise unused, so as long as we are still using vast quantities of crude oil for things like fuel, th

Bitumen is created with a fraction of crude oil that is otherwise unused, so as long as we are still using vast quantities of crude oil for things like fuel, there will be an abundance of bitumen. That means this wood-based alternative will be comparatively expensive and no more environmentally sound than bitumen. However, it is good to know that we already have alternatives ready, because we should be reducing our reliance on fossil fuels and don't want to be held back by a requirement for bitumen!