Answer:
The cleanest ways to travel
Bicycle: 0lb CO2 per km/0.6 miles.
Electric car (with solar panels): 0lb CO2 per km/0.6 miles.
Electric car: 0.03lb CO2 per km/0.6 miles.
International Rail (Eurostar): 0.033lb CO2 per km/0.6 miles.
Ferry (foot passenger): 0.04lb CO2 per km/0.6 miles.
Explanation:
