openLCA offers quite many ways to "drill down" in the result, by inspecting e.g. per impact category most contributing processes, inspecting which flows contribute most, and also which flows do not contribute at all. In transport, depending on the database you use, you need to pay attention to set the distance and possibly payload correctly, some databases have datasets that describe the entire truck running, which typically leads to too high emissions if you do not consider the share of the product in the good the truck transports.
