Question

question 9
what attempts have been made in the u.s. to address climate change?
increased use of fuel efficient cars
using power plants that operate on natural gas
all of these are attempts have been made in the u.s. to address climate change
regulating carbon dioxide emissions

Explanation:

• Fuel - efficient cars reduce gasoline consumption, which in turn reduces carbon dioxide emissions (a major greenhouse gas).
• Natural - gas - powered plants emit less carbon dioxide compared to coal - fired plants.
• Regulating carbon dioxide emissions is a direct policy - based approach to limit greenhouse gas levels.

Answer:

All of these are attempts have been made in the U.S. to address climate change.