Number of electric public transportation vehicles replacing ICEs

If one bus replaces 30 ICE cars: - Total car emissions: 30 cars * 4.6 metric tons/year = 138 metric tons/year - Bus emissions (assuming high occupancy and similar mileage): 19.19 metric tons of CO2 per year Total emissions difference is approximately 118.81 metric tons

The actual reduction in GHG emissions would depend on the specific details of the ICE vehicles and the public transportation system. Calculations need to be adjusted based on local data, including the fuel type and/or source of electricity for electric trains/buses, to get a truly accurate estimate.