Can wind energy make a significant contribution to U.S. electricity use in 2020 ?
a. Yes, with continued investment and technological advancements, wind energy could make a significant contribution to U.S. electricity use in 2020.
b. No, the current infrastructure and investment in other energy sources will limit the potential for wind energy to make a significant contribution to U.S. electricity use in 2020.
c. It is uncertain, as government policies and market forces could greatly impact the growth of wind energy in the U.S. by 2020.
d. It depends on the level of public support and demand for renewable energy, as well as the ability to overcome potential regulatory and logistical challenges.