Energy efficiency in transportation is really important. Here are a few ways it makes a difference:

1. Less Fuel Use:

   • Cars that use energy efficiently can use up to 30% less fuel than regular cars.
   • In 2019, transportation in the U.S. was responsible for 29% of all greenhouse gas emissions.

2. Saving Money:

   • If cars get better gas mileage—like 25 miles per gallon (mpg)—drivers can save about $1,000 each year.
   • If we improve fuel economy by just 10%, we could cut down on oil use by around 300,000 barrels a day.

3. Cleaner Air:

   • If every car improved by 10 mpg, we could reduce carbon dioxide (CO2) emissions by 1.5 billion metric tons every year.

4. Better Transportation:

   • Efficient transportation systems help move resources better and give people better access to services.

These points show why energy efficiency is so crucial for building transportation systems that are good for the environment and save money.