There are many modes of transportation. You can travel by bus, plane, train, car and boat. Out of all the ways to travel to millions of destinations across the world, which one is best for our planet Earth?

 

Which mode of transportation is best for the earth? Actually, the bus — specifically, city-to-city buses like the Greyhound.

 

The bus itself gets a paltry 6 miles per gallon. The reason buses are environmentally sound is that they are usually full of people, giving it the highest miles per gallon per passenger, at 208.

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