One of the main environmental problems in ports is Climate Change and its consequences. Since 1979, many international organizations have been working to control Climate Change. A literature review and a practical research were carried out to set up the basis to create a tool. These studies showed in recent years many ports have started to calculate their Carbon Footprint. However, there is no unified method in ports to do so. In addition, based on the results of the practical research, the development of a practicable tool for the calculation of Carbon Footprint in ports was highly demanded.
Therefore, a new standardized tool was developed and validated by 20 experts. This tool was tested with the existing results of the Port of Oslo and Ports de la Generalitat. The results obtained were in line. Finally, a case study model was created to test all the functionalities of the tool. The calculated emission values were compared with those obtained with the OCCC tool and MITECO tool. The outcomes were very similar with minor changes due to different emission factors. The results of this test process prove that the new tool is suitable to be used by ports around the world.