With the growth of global warming, climate risk management has become an urgent task in the world. The digital reform of government service, known as the e-government, integrates information and communication technology into the structure of governments to promote administrative openness and citizen engagement through high-quality public services. This study compared the ecological and economic performance of e-government services with traditional offline government services. The time consumption, carbon emissions, and cost spending for each identified service touchpoint were estimated using the Green-computing-based Performance Assessment method. The simulation under the AnyLogic environment was applied. The results show that e-government services are the most efficient, ecological, and economical. The stakeholder analysis revealed that enterprises contribute the most time, cost consumption, and carbon emissions. Although the e-government undertook more carbon emissions and costs than the traditional mode, comparing with enterprises, the overall contributions from government are negligible.