Which intermodal configurations are possible for transporting the grain from Poland to 4Farmers? 2. Which intermodal configuration is the least expensive on a monthly basis? 3. Which intermodal configuration has the lowest GHG emissions (carbon foot print) on a monthly basis? 4. Which intermodal configuration would you suggest to be the most sustainable? Base your decision making on costs and the three environmental issues of greenhouse gas, nitrification, and acidification.