The top five feasible methods for reducing greenhouse gas emissions in transportation are:

1. **Drive less.** The single best way to reduce your transportation emissions is to drive less. If you can walk, bike, or take public transportation instead of driving, you'll be doing your part to fight climate change.
2. **Carpool or vanpool.** If you can't avoid driving, carpooling or vanpooling is a great way to reduce your emissions. When you carpool, you're sharing a vehicle with others, which means you're using less fuel and emitting less pollution.
3. **Walk or bike.** If you can walk or bike to your destination, that's even better. Walking and biking are great ways to get exercise and reduce your emissions at the same time.
4. **Take public transportation.** Public transportation is a great way to get around without a car. It's also a great way to reduce your emissions, since public transportation vehicles are more efficient than cars.
5. **Buy an electric vehicle.** Electric vehicles don't emit any greenhouse gases, so they're a great way to reduce your emissions. If you can afford to buy an electric vehicle, it's a great way to do your part to fight climate change.

In addition to these five methods, there are a number of other things you can do to reduce your transportation emissions. For example, you can:

* Keep your tires properly inflated.
* Avoid idling your car.
* Drive at a steady speed.
* Use cruise control on the highway.
* Make sure your car is properly maintained.
* Recycle your car when it's time for a new one.

By making small changes in your transportation habits, you can make a big difference in the fight against climate change.
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