Maybe GW nuts count the same emissions at each step of the way, as this journalist does.
1. Dug from ground
2. Loaded on trucks
3. Deposited at terminal
4. Loaded on boats
5. Deposited at terminal
6. Transported to yard at coal plant
7. Burnt at coal plant
You get seven times the emissions about which to complain using the author's “step emissions” approach.
Yes; they are always counting the fuel consumed by transportation.