Answer: Republicans support an all-of-the-above energy approach that includes the development of alternative energy sources such as wind, solar, hydropower, nuclear, geothermal, and biomass, along with clean coal and American-made oil and natural gas.
Explanation: The higher support for nuclear energy seen earlier this century was likely related to rising oil and gas pump prices in that period, making nuclear more appealing as an affordable alternative.
The latest results are based on Gallup's annual Environment survey, conducted March 1-18. Rising oil prices have also been an issue this year and may explain why support is higher now than in 2016, though it is unclear why support has not yet returned to 2009-2010 levels.