Check out these containers on the rail in Europe, part of Noah´s Train. As NZ discusses the possibilities of moving Auckland's port to Whangarei, it's interesting to think of impacts to transport and emissions that this would bring.
To give you some background information regarding the Noah's Train project:
Rail Freight Forward is a coalition of European rail freight companies that are committed to drastically reducing the negative impact of freight transport on the environment and mobility. Therefore, innovation and a smarter transport mix are key. To raise awareness for the environmentally friendly transport solution and promote the goal of increasing the share of transport on rail Noah´s Train has been travelling through Europe since December 14th, 2018.